The couch is done. I like the way it looks and when we have the covers on the chairs I'll post of pic of how I dye them. When I look at this one compared to the current couch, it looks like a dolls couch, but we're going to get a small table and the two chairs are small as well. The room will look finished but not overfull. Covering this wasn't terribly hard. If you can sew curves at all, you can do it. The only places I had any trouble were at the corners of the arms and the back a bit. I think the secret was pinning the fabric to the pieces so that it was taut and fit, then measuring a half inch seam allowance. I then unpinned and just sewed the parts together with a half inch seam allowance and when I put it on the couch part it fit. Of course it's not perfect, but it is good enough for me!
If you decide you might want to try upholstery, I say, go for it...you can do it!!