We stayed in Gareth's place for 6 weeks and can definitely recommend it for long-term stays. In the first day we found a small issue in the bathroom, but Gareth fixed it almost immediately.
The place is close to a high street with a lot of grocery shops and convenience stores, two parks with public courts for the tennis lovers, and public transport (Acton central Station is less than a10 minute walk).
I will definitely recommend it to people who want to have a full apartment experience during their stay in London.
Everything looks as advertised on the pictures. The only difference is that the plans in the living room were gone and the TV was a bit smaller, but that wasn't a big issue for us.