We just got back from a three day stay in York, and would have to recomend Crook Lodge.
This is the first B+B Ive stayed in, and was understandably wary of what to expect, but it seems we struck lucky on the first attempt!
The owner is incredibly friendly - nothing was too much trouble. (he even got up early to make us breakfast when we were having an early start)
BTW - the breakfasts are great!
The room was clean, had en suite - a TV etc - the B+B has parking and is a 5-10 min walk down the road from the Historic centre of Lincoln....
All in all, seemed to be an extremely slick and friendly operation -
Had an enjoyable stay - no complaints whatsoever.