I settled for the Stone JL one. I had the Rosie one from Marks to compare, because from the picture the fabrics looked the same. In reality, there was no comparison.
There's a lot more of the Marks Rosie DG. Sleeves longer and the body length was almost to my ankles, I'm 5.7 height. It also has side seam pockets and looked odd without something to break up the front.
Overall, it was just too much dressing gown.
Having said all that, I don't think I'll ever wear a DG at all apart from the towelling one after a shower. I haven't put it on since buying it. I intended wearing it of an evening watching television but I sit on a heated throw and they are too bulky to do anything else in.