I stayed at Ehtasham place the night before the London Marathon. The house was very clean and the kitchen well equipped (I had breakfast and dinner). Ehtasham was very flexible with the check in and left some juice, milk and coffee for me.
The place is well located, literally 3 minutes walking from the train station. There is also an Asda and a Tesco express close by and some pubs and cafes.
Overall it worked really well for me.