I had an American Heritage table. I have to say the company did everything they could to try and make the table right but no matter they did we couldn't get the table to stay level.
I really had to do with the crappy slate bed, that particle board crap, that you screw the rails into. I had 5 different table mechanics, I use that term loosely with 3 of them, try without success. The company even sent me a new bed with the same results. The slate would inevitably pop.
For a $120 you can't go wrong for a great practice table but I wouldn't put too much into it. That's the advice I was given so I'm just passing along.
I'm now the happy owner of a GC1, best money I've spent. If you think the the AH has a solid frame you should see the GC.