The Hotel Colonial is a nice little non-monger hotel I found if you don't need a guest friendly place to stay. It's a quiet hotel with big rooms & big bathrooms and nice big showers with plenty of hot water. Pretty good location in general and pretty nice area. I stayed there in late Oct for a couple nights doing medical appointments at Clinica Biblica. It's a nice, affordable place. I think I paid like $50 with bkfst on Sunday & Monday nights. It has a cool little restaurant/café area in front next to reception with great Gallo Pinto and the best tasting coffee I've ever had in Costa Rica which is saying a LOT. Calle 11 just north of Ave 6.
http://www.hotelcolonialcr.com