I used the Rustoleum product last summer and so far it has held up great, with no hot tire pickup even though I live in sunny AZ. I applied this over a garage floor that was about 7 years old and the previous owners had a variety of paint and chemical spills from their silk screening business. I really believe proper prep and multiple coats is the key. I spent a fair amount of time cleaning any small areas where water beaded due to previous spills but other than that I used the cleaner that came with the kit and a pressure washer. The only reason I applied 2 coats was to get a little more uniform finish since it can be a little tricky when it is hot outside and in AZ we don't have a choice in the summer. I skipped adding the little paint chips since nobody is going to look at the floor with my car in there anyway. So far the surface has survived motor
oil, gear
oil, brake fluid, brake cleaner, WD40, gasoline, and probably a few other things that I am forgetting. I occasionally mop the floor with water and Simple Green when it gets a bit grungy and it cleans right up leaving no tire marks whatsoever.
Seems to be a lot of both good and bad opinions on most of the epoxy products. Some I am sure are not up to snuff but the others that fail are likely due to not enough prep. I went ahead and tried the epoxy since I knew that I could always recoat it if necessary or at least hide it with something like Racedeck.
Good luck in making a decision, I am sure you will get another 500 opinions on this one... ;-)