I have a Bernina 820. It's a big machine that doesn't have the embroidery option. I really like my machine. But we've had our issues. It doesn't like certain threads, it likes certain needles with other certain threads, and it tends to "shove" the top fabric a touch forward when piecing so it can make things a touch "off" (I understand this is from the wider feed dogs). But there are many things to like also. The larger throat space and stitch regulator are wonderful for FMQ, the automatic needle threader is great, and I really like the needle-down and knee lift features. It's very easy to wind a bobbin and it lets you know when the bobbin is getting low. It can either cut or "tie off" your threads.
I originally got a Bernina because I liked the dealer.
If I was looking for a machine now I'd probably look for a less expensive machine with the features I like the most.