I bought 3 of the FEIT LED shop lights to give them a try. Liked them so much I went back and bought 7 more at Costco. Light output seems a (maybe) bit less than my old T8s but the LEDs are very bright. Very happy.
My "old" T8s were all failing after a few years. The T8s were flush mount and hard wired on drywall ceiling. I bit the bullet and installed remodel boxes and plugs at each light location. I flush mounted the light-weight FEITs using just two screws in the ceiling and the slots on the back of the light. Plugged them into the new outlets. Now, if I want to move a light, it's easy to do ... like if I miscalculated on the path for new dust collection ductwork, not that it would ever happen. Replacement will now be easy as well, if needed. Given the price of a decent T8 fixture (one that won't burn out the cheap ballast in 12 months), the FEITs at $40 seem an excellent value even if they last just a year, and I suspect they'll last quite a bit longer.
A friend who works at Costco said the lights are one of their hottest selling items. While we were talking for about 15 minutes in the store, half a pallet was sold. He said they have received very few returns, which is a good sign, at least in the short term.