Customer reviews:
Customer Rating: 



Summary: takes some time getting use to
Comment: The product got a little late on delivery,the thum pads work great a little hard getting use on first person shooter,but after a few hours they start to wear in,good for protecting you new controller from those long nailed beezes,i had mine for a few months and they work just fine.
Customer Rating: 



Summary: want a pretty controler?
Comment: Thats all these gel tabs do it make ya controler look cool.dosent make it any easier they stick real good and never came off.and protect the sticks on the bottem from the plastic but other then that its kinda a waste
Customer Rating: 



Summary: GelTabz vs. Grip It showdown
Comment: Watch Video Here: http://www.amazon.com/review/R3HDWEAZZJISYD btw, neither are necessary
Customer Rating: 



Summary: Two thumb(stick)s up for these awesome grips!
Comment: I was hesitant to buy these after seeing reviews mentioning "riding up", "comes right off", and needing "permanent superglue" (yikes!), but I am really glad I gave them a try. Simply put, these things are great! I've had them on my 360 controllers for 2 weeks now, and I will never go back to the stock 360 thumbsticks. I haven't tried them on PS3 controllers yet, so my review is primarily for Xbox 360 use.
Installation: This was a breeze. Invert, place on top of the regular thumbstick, then flip the sides down.
Fit: VERY snug fit on my official 360 controllers. They never move during play (and no, I didn't use any superglue!) In fact, I just tried wildly flailing the sticks around and they still didn't move at all. I don't know why others had trouble - I'm curious whether they used aftermarket controllers, or maybe pulled off the original stick coverings before putting these on.
Control/feel: Very comfortable and provides excellent control; precise movements seem easier to make. Each grip has a slightly raised surface with 16 tiny bumps for texture and friction. Also reduces concavity and covers up those 4 big uncomfortable bumps on the 360 sticks (I think those bumps are supposed to be for grip, but they just irritate the skin on my thumbs when I play.)
Overall: A hearty two thumb(stick)s up! Will it double your K/D ratio? Probably not, but for $5 you can hardly go wrong!
Pros:
+ Pleasing to the touch and comfortable to use
+ Gel material provides excellent control for precise movements
+ Fast & easy installation
+ Very snug fit on 360 thumbsticks
+ Reduces concavity and covers the uncomfortable bumps on stock 360 sticks
+ Package includes 2 (black) universal grips for Xbox/Playstation, plus 1 (blue) for the Wii nunchuck
+ Low price
Cons:
- Seems to pick up grease from fingers easier than the stock thumbsticks, so keep them clean! (Maybe this is why some found them slippery?)
- Clicking in the sticks takes a bit more effort because of the extra gel material
Customer Rating: 



Summary: works great, when they stay on
Comment: The gel material is really comfortable. The only problem is during heavy action when they come right off the thumb sticks. I guess you could glue them on to alleviate the problem, but I would think this would have been addressed during development. I'd love to use them, but stopping for a half second during a heated hockey game or MW2 match to remove the curled up gel tab is not acceptable. They're currently collecting dust.