I used the RustOleum on an existing floor after etching as per instructions. After 8 years it needs to be done again. Where I turn the wheels coming in and out with my truck has worn it out. Other than that it held up OK.

I will be building a new shop, but am going to use Race Deck on it.

 

U Coat It, chipped & peeled after 1 yr. then removed & Rustoleum, it too came up.
Had floor scarfed & Professionally done with epoxy. I abused the floor badly with engine changes , jacking up car , etc. It has chipped in spots & stained that should not happen with epoxy.
Now considering going to ceramic tile.

 

I used the $99 Rustoleum kit from Home Depot also. I put it on early in the summer. It is certainly an improvement. It cleans up easily and is not slippery (the chips that they provide may help that), but I had the hot tire problem that AX mentioned one time this summer. I still have the new garage floor to do next summer. I may try that SW product.

 

I went to lowes or Home Depot and bought 6x9 charcoal carpets they are blinded and are like 25 bucks apiece I bought 4 of them my trucks tires sit on them, my garage floor has had that rustoleum paint system on for about 6 years now no problems