The hotel was hard to find - it's in the Membury services accessed from the WESTBOUND M4. When you enter the Services, there's the odd sign saying hotel, but they don't help much. You can't drive to the hotel entrance- even to unload. This is because it's up a small service road (emergency services only) alongside the main eatery, and not visible from the main car park. We were unlucky in as much as the hot water failed miserably in our room. To be fair, the staff were very helpful and arranged for us to have access to the (empty) room opposite, which did have hot water, so we could shower, etc. We were offered that room, but we'd already unpacked so we stayed where we were and used the facilities in the second room. Basically, the room was fine (after hot water problem resolved), clean & decent, and the staff were very helpful and friendly. There was not much noise from the motorway. I'd happily stay there again (especially as I now know how to find it!).
(based on 40 reviews)