I love the Janome Gem machines. and now that Kenmore and Janome are made by the same people, all of the Kenmore feet fit my Janome!
NO matter what machine you choose, ALWAYS find out before class what type of tables will be used, if they are plastic banquet tables, go to the flooring store and buy a BOUND carpet sample that is about 18" x 24". Use under your machine to keep it from bouncing around on the plastic table while you sew!