Hi,
I thought about the Sweet Sixteen - but did not want to have to sandwich the top - backing and batting... So I went with the HQ 16. I have had it since May and really have enjoyed using it. The space issue can be a problem though - I was able to place mine in one of the garage stalls that just happened to be empty. I agree with many of the folks here .. if possible go to a show and test drive different makes and models and see what will work the best for you. I really am glad that I took the plunge and bought one of these fabulous machines..
Good Luck,
Sue