My girlfriend and I stayed for 5 nights in late August-early September 2016. It suited us perfectly, being right near Hoxton Overground Station and a 10 minute walk from Shoreditch's busy area. There's also a good coffee place called Beagle right at the station.
Andy's place is clean, spacious and relaxing, as is the guest room itself. It's covered in art and indoor plants. It's a shared bathroom arrangement, but this was no problem. Andy also kindly made fruit, tea and coffee available for us each morning and we felt comfortable using the kitchen and fridge. Communication was easy.
The are two things worth noting. First, the spare room faces the Overground train line, which is a bit noisy with the window open, but fine when it's closed. Also, the blinds aren't great at blocking light.
Overall, we had a great stay and we'd definitely recommend Andy's place.