Great, we have had the garden room for nearly two years now, we loved the showroom so you could see exactly what you would be getting, the fact the prices are set rather than having to negotiate, no pressure to buy and really helpful people. The installation went well and we are really pleased. We have had two problems since with the side door and patio doors and although they at first sent us information to see if we could fix it ourselves when this was not possible it was easy to arrange for someone to call. So although they may not be the cheapest I would definitely go with Green Retreats again, the website being able to see how much everything costs is good, the only thing I might change would be to have the composite on all four rather than three sides. Where they could improve - putting the finishing boards along the bottom on all four sides not just the two that show. It looks a bit unfinished and as there are no foundations in the showroom models you do not see this until it is fitted.