We too booked Summer Grove Villa on the strength of the reviews. I found Nenneh to be very helpful. The breakfasts and snacks were good always served up with the Gambian smile! The trip had its interesting moments with the car picking us up from the airport breaking down requiring a push from children who were at the same time trying to sell us fruit! Everyone fell about laughing-us, driver, children. This set the tone for the rest of the holiday, yes the bumsters were a little tiring but we took it all as part of the experience!
The room was spacious and clean. Water went off a couple of times when they were fixing the pool but there you go -it happens! Found all the staff to be warm and friendly and would recommend if you don't like hotels.
Also recommend Arch tours-very good certainly for the first visit to the Gambia. Only stayed a week but warmed very quickly to the Gambian people and their lovely country