Our C2W scheme is through them. I had a couple of spokes break & had them fixed locally & they refunded the £25 bill no problems, but there were a couple of small issues with my bike, a cable clip had been replaced with a zip tie
& the bars look like they have been forced round in the stem & scratched a little, but minor gripes really.
A group of us did the Hadrians Cycleway a couple of weeks ago & one guy had a new bike, which was an insurance replacement through Wheelies, he had only rode 30 miles on it before the ride & after about 100 miles of the ride the cranks came loose due to the bottom bracket not even being hand tight
So I'd say as with any 'mail order' bike you need to be reasonably handy yourself to ensure everything is ok otherwise you could have problems