We had a truly delightful stay at Budaveg (Winter 2012). It was everything promised. It was spacious, clean, and conveniently located to public transit (bus at the corner, subway 2 blocks away) and the market, Lehel csarnok (shops and year round farmer's market). The flat was well equipped with everything we needed in our a home away from home: a no worries kitchen stocked with the basics, family friendly furnishings including a few toys, and a clothes washing machine. We were even treated to delicious freshly baked gluten free bread.
We greatly enjoyed our tour of the city and appreciated the lift to and from the airport. The maps and guide books available in the flat were a big help, especially the guidance on where to find local veggie establishments. We hope to stay there again on a return trip to Budapest.