I posted a question about this a while back and no one responded
I am glad though that there is more feedback on this post
I did Purchase the Bernina Quilt Frame and I use my 830 with it. Just like anything else, there is a learning curve. I haven't used it much (due to my work schedule) and I am still learning. I do eventually want to get an APQS machine but don't have upwards of $20k right now, nor the space to put it. I thought the 830 frame would be a much cheaper alternative and something I could learn on plus I got a really good deal on it.
A note about the Midatlantic Quilt Show. PLEASE do your research before purchasing at the show. I live only a few miles from the MAQF and the qulit show prices on Bernina Machines are not stellar deals. I purchased my 830 at my LQS for much less than the quilt show prices!
Maria