Are you asking yourself this question?
This is because it's the best performance over value right now, which is why everyone WERE recommending it.

Selling? Unless you can throw at half the price, I expecting risk of shipping them back to Amazon.

Samsung EVO which is within your budget is to be AVOIDED for the time being until there's news of it being fix.
Intel 530 will fit your bill nicely, plus with 5-year of warranty, you don't have to worry for quite a long time.
Best performance will still be Samsung EVO but with its current issue (read few pages back), it's not recommended (for the time being).
Plextor M6s, I don't know about that price but if you can find one, the performance is considerable better than Intel 530 but with only 3-year warranty, that's if you only care about overall performance.

For your reference, but the price may vary.
http://ssd.userbenchmark.com/Compare/Plext...20GB/2225vs1934
If you care about reliability over performance, Intel is the way to go.
I just recently installed Intel 530 120GB for one of my client and it's extremely fast, less than 10 seconds (from power button press) to desktop with his 2-year-old HP machine.

Performance: Plextor M6S
Warranty/value: Intel 530

Intel 530 for value, Kingston has make a bad reputation of themselves right now so I don't recommend it.
RAID1 (and above) basically only redundancy, even the SCSI 10k rpm drive won't boot as fast as SSD.

Is that a Dell XPS13? Looks familiar (the back).

Oh, XPS15, I guess they're using same body design.
Anyway, what was the original storage? HDD?
I think the XPS13 is using m-SATA for its storage.

Why not Intel? Seems to be on the same league and performance, with 2 more years of warranty to boot, nice value.

User benchmarks, you can take this as a reference guide for your SSD decision.
http://ssd.userbenchmark.com/Compare/Samsu...56GB/1594vs2317

Topup if you're able to, since the capacity, performance/price ratio is lower.

Try ask lingloong from garage sales, his Intel 530 240GB should fit your bill, may topup bit more to cover the postage though.

What's your aim between those two?
Performance or warranty value?
If performance then Samsung EVO, warranty then Intel.
Real world usage won't notice any differences between those two, only when you goes into specific task like loading lots of files or any IO intensive programs.

Comparison: http://versus.com/en/intel-530-series-240g...g-840-evo-250gb
Take it with grain of salt though... just follow your instinct..

If you can wait, there're some sifu here with Samsung EVO that had issue with performance for old data (more than few weeks to months), Samsung already came out with firmware fix but still need times to determine if the fix will works long term.
If you can't wait and do not want to take the risk of bad firmware (hopefully it's not ) then go for Intel, the firmware is one of the most reliable so far, haven heard of any issue regards their firmware.

MLC has better endurance than TLC chips but as tech grows, it improves with how controller and firmware works to minimize the wear level in each chips, Samsung uses their developed software call Magician or whatever it is (lazy to Google ).
Intel however has their own R&D and they have good history of developing chipset and firmware (look at all the Intel mobo...).
Samsung also developing many NAND chips for OEM and Enterprise so their storage chips is very good, now the only thing left is probably their firmware development, of which I'm looking forward to.

It's been long since I heard/saw SLC, even more Enterprise are now uses MLC, and Samsung trying to pushes the TLC into Enterprise market.

If you don't do bulk copy all the time (copy tons of files), the sequential speed from SATAIII is not so useful, random 4K read/write is much important, just make sure you're on native chipset (Intel usually preferred for Intel mobo) for optimum performance.
Benchmark wise there's only minor difference from SATAII to SATAIII in terms of random 4K read/write so you don't have to worry if it slow till "poke"

My plans for my laptop is 240/250GB or 480/500GB in the future and install my current (120G) SSD to my old desktop (still using SATAII) for faster OS and games load. That will be an unknown future time

Well, you can always arrange your other HDD to different slots, making sure SSD is plugged to Intel chips.
3rd party chips SATA port should have different color? Well, that depends on the mainboard model and chipset.

I was in the same condition as him before when I was using my previous Dell Studio 1555, even though it's Scorpio Black, it will become that slow after half-a-year. I use hibernate almost all the time when I was on my previous laptop, just to shave off a minute of boot up time, it was a terrible experience when I think back; how the hell did I had such patient?
Now my SSD is been running for more than 9 months with Windows 8.1, shows some sign of slowing down but still capable of booting fast (worst is around 25 seconds), SSD is really amazing. Putting more poison to newbie...

This, you need to read the full manual for your mainboard support, the full hardware support should includes all the ports, switches, and jumpers for your mainboard.
Otherwise, you will have to find one of the Internet for the complete hardware service manual.

Ok, found this link to servicing manual for your model, but I'm not guarantee it will the very same mainboard model however.

Well, Samsung EVO is one performance value SSD for now, but there's Crucial as well.
If you don't mind the hanging SSD or just put it without any holder in place, SSD can be put anywhere in the case, even you do move them a lot, they're not afraid of mechanical failure (shock & vibration) cause there's none to begin with. Bracket only helpful for installing into laptops.

SSD nowadays are price according to their respective performance, warranty seems to be the 2nd thing that consumer look at right now.
The 730 will be tad expensive, but slightly faster, and also has better features such as Power lost protection, good for desktop without UPS.