I do OTA only on point release, e.g. 7.1 or 7.1.2. But for major upgrade 6 to 7 or 7 to 8, it's better to do via iTunes.

Im using 5s but I didnt update yet until this ios8 become stable... the "worlds advance OS" was sh*tty 

i'm not sure if anyone is facing this problem but at least for me my line of iOS 8.1 devices are suffering from WiFi slowdown.

My MacBook works just fine when connected, my Android devices works flawlessly, my dad's iPad mini 1 which is still on iOS7 works wonderfully as well.
After updating to iOS8 on my iPad mini 2 and iPhone 5s, I've been noticing a lot of freezing and slowdowns on both my devices. Instagram refuses to load, tweets doesn't send and WhatsApp texts takes ages to send (the texts are just a few bits in size, c'mon) 

One thing is Safari on 8.1, it freezes or just stops loading halfway and refuses to load. It's painstakingly slow. I cannot bare with it and changed it to chrome although I always prefer Safari. I've been on Apple forums and this seems to be a widely reported issue.

I initially thought that this was my Unifi's issue (I'm on 10Mbps) but when I switched to my Android device (OnePlus and M8), everything works fine and flawlessly. So I suspect iOS8 is definitely the culprit.

I've tried resetting network settings and other 'fixes' doesn't work for me. All I can hope is Apple is working on a fix and release an update ASAP.
Anyone facing the same problem here? 

i just got 4hours usage only from 100% - 15%.. IP5S IOS8.1.. is it normal?

Is it free all times?
I m using n loving it.

That's my last resort. I found a solution which is to put into a refrigerator for 10 minutes... Let's see if that works .. If it doesn't then I have to do that already

Confirm will work, all electronic products marketed in the US and EU has to go through testing of -10 degrees celcius for extended periods of time. I hated that part of testing when I had to go into the bloody area to test out the products to see if the temperature affected the quality.

i am still with 7.1.2 on my 5s. is it advisable to upgrade to 8.2?

okay so it is the 8.3's fault. was afraid it was my phone acting up. clearly it's not. phew
the stuttering/freezing occurred on all settings for me (2G, 3G and LTE) when playing those games. or are you talking about the internet speed..? if you are, then yeah it is slow, but it can still handle Whatsapp. i don't need 3G/LTE constantly because when i'm out (at home got Unifi), i use Whatsapp the most compared to browsing. if i need to browse, then only i turn on 3G/LTE. this way i can conserve battery cause the phone will need more power to continuously search for 3G and even more power to search for LTE. it'll be even worse when that area has none of that (or 3G only) so it will keep on searching for it thus using up more battery. so yeah, battery comes first.

After just two days, I think I'm addicted to Apple Music, hahaha...

It's 3.99usd per month for individual.