Libby's house is perfect for a short stay in London. It's close to the subway, but you shouldn't expect the same standards as in a hotel.
Libby and Jordan are gracious and kind hosts who where away most of the time we were there. They made us feel at home.
The room was large enough but could have used a little more storage space in my view. The bed was not up to par, but if you're used to sleeping on a springy mattress it will suit you just fine.
All in all a positive experience and I recommend staying at Libby and Jordan's house.