I have a friend that does all her piecing using her Bernette serger. It can be kinda lumpy to quilt over, but I've gotten used to it and I try to stay away from the intersections on her quilts. I have the same machine and we've both had ours for about 30 years. I use mine all the time, not for quilting or piecing, but for garments, finishing fabric edges, piecing the backs of quilts, quick projects, repairs, finishing and edge before hemming. It has no special threading assistance, but as good as this machine is, I can deal with threading. I usually leave the same thread in all the time...a neutral, off-white that I use for everything.