I only owned ducky shine 2.
The are few difference between the Shine 2 and Shine 3.
The Shine 3 has all the new lighting modes and the new RGB space bar.
The dedicated media keys were removed from the Shine 3 and replaced with the repeat rate/delay rate keys.
The Shine 3 is also firmware upgradable for any new lighting modes that are released.
All the other changes are internall processor upgrades etc.

Typing experience should be same.
My ducky shine 2 is Cherry MX Blue. Which is tactile and clicky.
Good is key easily to replace coz having cherry stabilizers.
Bad is the Costar stabilizers are better than cherry stabilizers because costar stabilizers is nice to type. Not a heart breaker also.
Another bad is the abs key caps, get shining after typing for a while, may need find new key caps like pbt to replace.

almost all stock keycaps are using ABS plastic to manufacture the keycaps, except for a few that i know is using PBT plastic for their stock keycaps (keycool pbt and ducky g2pro).
the problem is this, with ABS keycaps, it will gradually start to "shine" after 3 weeks or so, depending on how heavy ur usage is and whether u have a habit of eating chips between typing or sweaty hands.
even worse if the keycaps have some sort of rubber coating or matte coating and have backlit legend (for example razer blackwidow ultimate), because when that coating comes off, u have ugly looking keycaps and it will make ur whole keyboard looks ugly as well.

so, logically u would want to replace them keycaps.
if u want to have uniform keycaps, same theme, u will have to buy them from keycaps seller mainly from taobao. but u can only buy back the same one as your k95 (i'm not sure if taobao is selling k95 keycaps) because the major aftermarket keycaps are of a different size layout from your k95. meaning it won't have a 100% compatibility fit. for all i know, the spacebar will never fit, and u have to spend quite a lot to get the extra kits of the keycaps set...maybe u wouldn't understand what i'm talking now >.<
bottomline is, most "gaming marketed" keyboards are using non-standard layout. getting keycaps replacement is a big headache.
why we recommend ducky when most newbie ask for recommendations is because ducky is using standard layout and it's available locally.
so yes, the flexibility to replace all keycaps is a dealbreaker for most of us
i believe it's a good board. and i strongly believe some of us old members would have gotten corsair boards if they conform to standard layout
but in regards to minor issue like led problem, we would rather fix it ourselves by replacing the led as it'll only take at most a day to do it rather than weeks to RMA. but of course, voiding warranty is an issue. unless u are ok with voiding the warranty early or can find a way to remove the void sticker without tampering it or know where to find this stickers
where u staying? one shop that i know which is heavy-arm in subang, let customers try out the different switches. either that, maybe some forumers here who stays near to u might be able to let u try their boards if they have it.
u send it for RMA?

if you are good typist any keyboard is also fine, mech kb doesnt really improve my typing skill but the feel is the factor for me

Hello sifus , newbie here. Just wanna ask , are these mech keyboards?? I plan to buy one of them but my budget only around rm 100 - 150. Feel like buying CMstorm quickfire TK cause of the LED backlit that so damn nice. Confuse. Backlit really got so important or not? Really will satisfy you ka? or without the light , just typing ady syiok?

http://detail.tmall.com/item.htm?spm=a230r...&id=26743332644

http://item.taobao.com/item.htm?spm=a230r....&id=35417894423

We people get LED because of this
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letting go my ducky zero