I use the Brothers Disney one. But I'm thinking about trading it in for a newer model. I've never had a problem with it, but I would love one that connects to my PC so I can download patterns.
My cousin (an avid sewer and quilter) uses the Bernina and loves it. She warned me though to be careful what you download as some people have downloaded patterns and it wiped their memory out! So if you get one, be sure to check with your fellow YTr's for reliable download sites...
Check out the prices at
www.sewvacdirect.com! They have awesome prices and have always knocked off the shipping cost. I've bought several from them and have never had a problem. But make sure you have a shop in town that services them, cause if you buy off the internet, you have to ship it back to them for repairs if you don't have something close by. Of course, that's normal for just about anything you buy off the net.