I own this keyboard, and have no issues with it. Build quality is very good, feeling proper...
I got it with red LED btw, since you can find with white led also. Its preference matter but i like red more(i;ve seen other models with white led and don't like it much).

I don't use o-rings tho and never recommend them to anyone for keyboards with tactile switches. However it's very cheap solution so just buy them and try. Who knows maybe u will like end result.

 

As far as I can tell, it's the same as the QuickFire Pro but fully backlit. I've owned the QuickFire Pro, it's good but not great. It uses a cheaper China OEM compared to the QuickFire Rapid, QuickFire XT, and QuickFire Stealth series. If backlighting is a must then it would be a good buy (or the Ducky G2 Pro, not sure which is better but if I had to guess it would be the former). If you don't care about backlighting too much then get the higher quality QuickFire XT.

There's also the CM Storm Trigger-Z, which should be of higher quality (never used one myself but it's also a Costar board like the QuickFire XT/Rapid/Stealth), and it's LED backlit.

 

Its a solid keyboard never had an issue with mine. I tried the o-rings but felt they made everything mushier, it did make typing somewhat more quiet but i wasnt a fan.

 

Thank you for your input, the two people that own it seem to be please, which is a good sign.
I dont care about backlight but i dont really have that much of a choice where i live, its either the quickfire ultimate or other brands like logitech, etc... I settled on the ultimate because it has browns and its price tag is lower than 100€. However, i will try to see if i can find a store wit other CM storm keyboards.