Your question is kinda misleading. The three paints most of us use are Acrylics, Enamels, and Laquers. All the Tamiya spray paints I have used are laquers, I don't think they make an enamel. hope that helps.
Well, I've never had problems with tamiya's sprays. Just make sure that you don't put a really heavy coat on, because you'll end up with drips, runs, and other imperfections as well. There's a really good tutorial by ttt in the tutorials and how to's section. I thought one of the above posts had it but I guess not.