I have purchased this product (the Silver Gray for 2 car garage) twice now and find it to be an excellent product when you follow the directions and apply it properly.  My first garage that I did this in, I didn't quite follow the directions and had some hot tire peeling after a year or so.  Having learned that lesson, in my next place, I made sure I follow the directions exactly.  It is especially important to clean the floor thoroughly and use the etching so that you have proper adherence to the floor.  Apply the product within the time frame and make sure you are thorough when applying.  Don't worry about running short on the product as Rustoleum provides enough product to use for a 2 car garage and then some. I actually had extra paint that I used as an additional coating.  I will say that if you are applying the blue decorative flakes to make sure you apply evenly or you will run short as sometimes as in the case of my second garage, the two packages did not have an equal amount of flakes.  Thinking it was divided evenly between the halves of the garage, I ended up with more on one side than the other.  One of the most important steps is to make sure you apply it in the right temperatures and give your garage floor several days to properly cure up.  I let mine sit for at least 4 days.  In addition, if you want this to last a long time, I took it a further step and bought Rustoleum clear coat for painted surfaces.  After allowing the gray coating to cure for 4 days or so, I applied the additional clear coating over the surface and let it cure an additional 4 to 7 days.  Yes, I know it an additional cost as this stuff can be a bit pricey and is a bit of a pain having all your stuff and cars out of the garage but this additional step will prevent most peoples complaints about hot tire pickup after a year or so.  My garage looks brand new after two years with no issues and no tire pickup or flaking anywhere in the garage.  Price wise this normally is in the 90 to 100 buck range (sometimes on sale for 80 to 90) for a 2 car garage and if it is any higher, then you should look elsewhere.