Serger quilting
I use my serger for piecing quilts, strip sets and strata for strip quilts can be whipped out really quickly using a serger. You can use the serged edges on the outside as a decorative element or hide them in the inside just like traditional quilting. I serge the edges of my fabric before I pre-wash to keep raveling to a minimum. As a long-arm quilter I love it when my customers serge around the edge of their quilts to stabilize the edges- no split seams !! One thing to remember is to use a good quality thread when piecing. Not all serger threads are created equally some are very linty and fuzzy, you will not be happy with the result if you use one of these threads. I do not find extra bulk to be a problem during quilting with my long-arm. Bulk may be an issue if you hand quilt-- I don't know.
Good luck with your new serger.