Becky is a very nice and attentive host, and loves to answer all queries before arriving. We had some communication problems with her during our stay, which made it a bit hard; she did made an effort overcoming them afterwards, but I would recommend preparing another contact person in case something goes wrong.
The house is big and spacious, and it has chcarcter, and the kitchen is highly equipped. However, be aware that the house sits on a very busy road, and one of the bedrooms gets a lot of noise at night. The other bedrooms are OK.
Just make sure to ask all relevant and important questions (extra towels, extra sheets, extra keys etc.) before coming over, and don't hesitate to ask her anything during your stay because she can help.
The house might use a bit of extra maintenance, but It's very livable.
Public transport is good (as in everywhere in London), but be aware that it's 40 mins bus ride to city centre, or 15-mins walk to the nearest tube station, and from there 30 mins ride to most major stations. It was not easy with 3 kids.
To sum it up - a fine place if you're looking for a fair price and spacious living, and don't care too much for noise and proximity to city centre.