I stayed at Helen's place for a couple of nights after selling my flat, in between homes.
The flat itself was lovely; stylishly put together, big, bright, clean and comfortable. All the amenities you'd need in the kitchen to cook at home, big TV, great shower and a comfortable bed. Helen left eggs, bread, sweets and bits in the fridge to use during my stay.
Helen was always quick to reply to messages and was extremely flexible to help me out as much as she could with timings and my needs!
The apartment is located in a great, safe area and Finsbury Park has plenty of options to eat/drink locally but also well connected to get central.
I would definitely recommend this place for anyone needing somewhere to stay in London.