I don't consider myself to be a backpacker (my suitcase has wheels), but I was looking for something cheap whilst travelling in a group of 6 friends. I gave this place a call on the way up to Kanchanaburi from Bangkok. We got three log cabins right down on the riverside (cabins look out onto a backwater of the Kwai, but it is still very nice). Make sure you ask for these rooms as there are a good number of rooms on the land which are in a different style. Rooms were spacious, clean and comfortable. Excellent location. I was a bit worried about being so close to the 'farang' bars as it's a side of Thailand I'm not interested in. But most of them were empty when we were there in January. There is some excellent street food available on the road outside the guesthouse (turn right and look for the papaya salad stall about 5 minutes down the road - excellent) along with lots of Thai kitchens serving traditional favourites: Pad Thai, Pad Siewe, Khao Tom, etc. And it was very pleasant to sit outside our room with a beer. There is a 7-11 close by where you can buy the anti-mosquito coils which were very effective. There were quite a few other people staying at Sam's Guesthouse when we were there. They were all polite and quiet.
