I was given a modern Bernina 820 from my friend who replaced it with a different Bernina (which might be the 770...).
I did a series of three baby quilts earlier this year, in one I used the built in walking foot, in one I used the BSR (bernina stitch regulator) and one I just did with the regular foot. In all three cases, the method I used was easy, they all worked well and were easy to use/switch. The huge throat space and bright lighting were wonderful. Obviously, no one method of stitching is appropriate for all quilting designs.
Keep in mind, however, that I am very accustomed to machine quilting on a vintage sewing machine with the feed dogs engaged. I've also been using a friend's long arm for the last couple of years.
At least for me there is a very big difference between what I can do by moving the sewing machine around as with the long arm and what I can do moving the fabric around with the DSM (domestic sewing machine). The motions are not at all the same, and while I imagine I will get better I don't really want to! I'm starting to look for long arm options.