Hi Neil
There have been several 'threads' on motor movers so you might have to look back quite a way on this forum. Everyone feels they have the best, but Powrtouch seem to come out with flying colours. Not only do they have a 5-year no quibble guarantee (from new) this is included in the price quoted for fitting. Powrtouch also 'price match' so it is worth looking around to see what is on the market and the relevant costs. I think there are only 3: Reich, Truma and Powrtouch, at the moment on the UK market. If this is incorrect I am sure my forum colleagues will let me know!
We much prefer our Powrtouch (having had the others fitted to former caravans).
Hope this helps.
Ann