We find that roll out mats can bunch up and shift from tire turning. They are ok for putting a single mat under a car, or if you have a conditioned space below a garage and want to prevent water from leaking down to it, other than that we find that tiles are a much better, and easier to install choice, especially if you want the entire floor covered.
Yes, they are economical, but if you are doing anything more than parking in the garage, probably not the best choice.
Also, the mats are kind of soft/rubbery so they damage easier and can't be easily fixed unlike tiles which can be singly replaced. We carry the mats under our ArmorCover Line so we have experience with mats, tiles (
www.supratile.com) and epoxy.