The place is clean and the location is great : Haggerston has nice and trendy food offerings around (Tonkotsu, Tata, Berber & Q, Brew BBQ, and many others..).
Easy walk to Shoreditch Park, Haggerston Park, De Beauvoir Sq, Regent Canal and other great spots.
You can even walk to London fields, Shoreditch, Dalston and so on...
The bus stop and the overground station are literally 30 seconds walking from Andrew's appartment.
So it is perfectly located and super convenient to enjoy the buzzing East London, without being in a noisy area.
That said, some things can be thought to make it a little bit more comfortable for guests : there's no room to put your clothes, as the room is tiny (as described).
So maybe the big bookcase with second-hand books could be replaced by a wardrobe.
Same thing in the bathroom : no table to put your toiletry or clothes on, which end up in the sink...
And as described (so there's no suprise): no access to communal space, living room or kitchen.
The place is convenient, and quiet, for sure, but having stayed already in the same area with Airbnb (literally across the street actually), I can compare. And I have to stay that this is not the best value for money ever, even if it's affordable for London, especially if you're travelling alone.
Last thing : even if Andrew was nice and gentle, I had the feeling that this is more a business than an Airbnb experience and that I was more the customer of a real estate agency than a guest.
You should know that if you're looking for an Airbnb experience as much as a place to stay.
If your goal is to stay in a convenient and not crazy expensive place, you should be fine with Andrew.