Personally speaking, I use my emb machine alot for my quilts. I love the look of added embroidery.
I sew & quilt on it too, but I do free motion quilting. Once in a while I will use a quilt design to quilt blocks when making a quilt as you go, but I haven't tried the designs on a big quilt yet.
Once you get into embroidery I think you will find you use it on many many things other than quilts.
I use mine for clothes, purses, pot holders whatever I can hoop. LOL
Good luck.