I went online and found this "interactive" guide to the 830
http://www.husqvarnaviking.com/us/8681.htm
My mechanic husband would really like that drop in bobbin! I think you got a wonderful machine for a pretty good price. Husquavarna is a big recommendation, that is for sure!
How long is the throat compared to your other machine?
I thought you might like to see what your machine can do with guide.
Have fun!