Quoted from Rarehero:
It helps you learn the rules & it’s fun - but nothing compares to the real deal. The real physics and ability to “feel” the machine make it a totally different experience.
Ditto. TPA is great for learning a table's ruleset on the cheap. But it's in no way going to make you a better player in real life. The physics are OK for what they are, but the repeatable nature of things is just so far removed from reality.
Case in point - here's the end of the last game I'll ever play of TPA's Scared Stiff. Just played until I couldn't take it anymore.
Oddly enough, I've not been able to crack 2.4 Billion in real life.