I did happen to watch the one you referred to Merlot, mainly because Great Bookham is not so many miles away from where I live. Also know the places that Phil had been sent to scout. I was moved by that lady, still very raw and emotional from the loss of her partner, her daughter came across as a great support to her mum and they clearly had a very nice mother and daughter relationship. Loved her cottage, particularly after it had been very aesthetically improved imo, I wouldn't have moved either especially after the work had been done, in spite of the more spacious "wow factor" house with the great views over the Surrey Hills.
I enjoyed the premise of the programme, I think I may watch it more often now.