I had a similar experience a year or so ago when I used fleece as a back with no batting for the first time.
I'd probably like a light weight batting or at least a layer of flannel, for me it would have a better feel. The fleece I used was very dark, had my quilt been lighter it would have certainly shown through to the outside, another reason for some layering.
But it was easy enough to work on and I love the width, typically I can't make a top that fits 44/45 width and need those extra inches
I recently finished a top backed with flannel and I made the binding with the same flannel. It was a high quality flannel but once again I'm reminded that I don't like working with flannel. Never felt that way with the fleece.