I have one and really like it - I have tension set at the 00 it came with - I did have a problem sometimes with the threading of the top thread - right at the take-up lever there was a microscopic piece of plastic making it a little difficult to get the thread seated properly. Once I started threading that part backwards (from the needle back up through the machine, (you can see the thread drop properly through that little window in front of the take-up lever), I haven't had any problem. I probably could file it off but I am concerned with getting the dust into the machine, so I just learned to do it that way.
As for quilting - yes, there are a lot of beautiful designs out there as well as being able to actually quilt blocks on embroidery machines - it is getting more and more popular. :-)
Marysewfun