I took my parents to see London and it was perfect to stay at Emma's place with them (and parents can get picky). We didnt meet in person but her friend took great care of us while she was gone, explained everything in detail and made us feel at home. We got a nice homemade cider as a welcome and all essentials for breakfast.
The place is very well connected - the bus is basically in front of the door and takes you directly into city center. The Underground is also in easy walking distance. There's also great restaurants nearby.
Would come back anytime!