Tamiya is famous for being the quickest drying during brushpainting. I am sure that people that try Tamiya as their only acrylic are the ones that run back to enamels and say that acrylics don't work.
I was a long time enamel user,,,,,,and switched to acrylics. Unlike Jtilley, I didn't have a good experience with PolyS, so I stayed away for a long time. PollyScale is a different matter, I tried those, Lifecolor and Vallejo as my first foray into acrylics a couple of years ago.
I am sold on Pollyscale, Aeromaster and Lifecolor, and use Vallejo/Italeri for the few colors that I have no choice.
The key to acrylics is to use a primer,,,,,,,,and to never, not once, go back over your work when it is still wet. We weren't "supposed to" with enamels, either, but, you still could "work" the paint a bit,,,,,,,,,,now, with acrylics that is a big mistake.
People complain about the "learning curve" with Acrylics,,,,,,but, that is because they forgot that they spent years,,,maybe decades,,,,perfecting their enamel painting before, then they got used to it, and now they have to do things a little differently.
Airbrush Acrylics with a Slow dryer (some enamels require a "drying speeder-upper"), and airbrush and handbrush acrylics with a flow enhancer, some thinners include those things in them already, be careful of how much more you add separately. (enamels get flow enhanced by the thinner itself, and "speeded-up" by spraying with lacquer thinner) The "enamels only" camp likes to point out that you have to use slow dri and flow enhancer in Acrylics,,,,,,,,,,and conveniently leaves out the part where they use "Japan drier" and Lacquer thinner to speed up their drying and enhance the paint's adhesion.
If you use something like Badger's new primer, you don't have to use "smelly" paints at all,,,,primer, thinner, paint, clear-coat, all can be "safe for your nose" (except for the paint particles in the air, that stays the same, wear at least a dust mask when spraying acrylics)
If you want some Pollyscale or Aeromaster,,,,,,go on Ebay or Amazon and type " Floquil Polly scale " or " Floquil Aeromaster " and you will find vendors selling the paints.
We are all going to be using AKAN or Misterkit's formula one day soon,,,,,true water soluble paints that don't have additives in them requiring a "house thinner" to work right.
Rex