Im in need of a new serger and I want something quality so that Im not replacing it every few years. I went to a local sewing shop and found a few that I really liked, the Baby Lock brand, but I almost choked when the sales lady told me the prices. Does anyone have any experience with this brand? If so, are they really worth the price? I've read reviews but most people just praise the air threading and the fact that one doesn't have to adjust tension for different fabrics which is pretty great. I want to know if overall they are really worth it. Thanks!