I have a Baby Lock Jane on my frame and do not like it at all. It is primitive with a complicated threading and an under the machine bobbin.
Brother makes good machines at reasonable prices. I have several even a cheap embroidery machine. My first one was $129 and it is still a good machine. They all have drop in bobbins.
Also have a Viking Shaphire that I love (cant spell). It was $1100. Also drop in bobbin.