Dennis's place is probably, at least when I stayed there, the best deal in Silicon Valley. It is small and a little rough around the edges, and also not in the snazziest neighborhoods, but you get what he said you'd get, and everything you need is there. The bed is quite comfortable and all the amenities you'd expect are there. Parking is ample and easy, Dennis is also a good communicator!
By "rough around the edges" I mean it is not exactly a designer space. It's in the side of a house, with a separate entrance. The one negative I found was that there is a strange step getting up from the bedroom to the bathroom. I forgot about it once and almost fell right on my nose. There's another strange step up to a closet that's not a closet but a kind of utility closet for the house. You get the picture... none of this really detracts from the utility of the space. And yes, very very good value for Silicon Valley. I would definitely stay there again!