We had the MOST fabulous stay at Tristan's house. The house was just absolutely gorgeous, and a total dream. We stayed through the Thanksgiving holiday and the kitchen was fully equipped with everything we could possibly want to make a traditional meal.
We did communicate with Tristan a few times about the heating, as we found the system a bit complicated but he was SO responsive and helped us solve our issue immediately.
Besides being a gorgeous house that we didn't want to leave, we did spend a decent amount of time traveling around London. Ladywell is a short walk and we were in London Bridge in 9 minutes. Excellent connections! You also can take the bus from Lewisham station to the hospital, which is right across from the park (and a few minute walk to the house).
We loved our stay so much, and I cannot recommend staying at Tristan's house enough!