ordered the DG Iver 5 after much research - and am very happy. It was definitely worth the extra outlay. The fitter was really impressed with it too, saying that the design is lovely, the control simple and very effective, and it was easy to fit.
I have run it gently a couple of times and it is so much better then what it replaced. It will definitely keep a stone house warm in cold and damp weather. It also doesn't eat fuel like the old stove either - a couple of logs an hour is all it needs to give out a good heat.
I love the simple design - modern but fits well in an old house and a big fireplace!
And I was also happy with Stovefitters - good service and communications about the delivery and sorting out problems with the courier.