From: Southern California
I just bought a Babylock Destiny2 yesterday. I bought a BlJourney 1 1/2 years ago. It was fine for a while, but then started pulling the bobbin thread up, or the top thread down, and thread nests galore. I took it to the shop 6 times since May, replaced the bobbin case two times, and spent hours at the shop with the gal there and stitched designs out on my machine so she could help me figure it out. We never could. If I hear the phrase "owner error" one more time in my life from the shop, I'll go beserk.
Anyhow, I couldn't use a machine that didn't work, so I just traded it in for a new one. I tried it out and it works perfectly. While my solution is not the one I preferred, I'm happy with it.
The moral of this story is that just because the shop can't fix a problem, that doesn't mean that the problem doesn't exist.