Different country, different environment, different lifestyle, therefore I can't really compare my experience with Ajit's place to the others and also this is my first time venturing around London and with that I can only share few things.
My stay on Ajit's place is okay, the inside of the house has that smell of cigarette smoke stuck on the carpet. So for those who can't stand that smell then bad luck for you but rest assure the room you'll be staying in doesn't smell. The room has a decent space with personal kitchen stove, small table and a bathroom but no TV. It is an ideal scenario for someone who will be out the rest of the day, come home, rest and out again. The room is clean so you can sleep fine but don't forget to shut the window in the evening as bugs tends to fly in.\
The location is a bit far from the metro, If i remember it's about 15-17 mins walk, the neighbor looks safe enough for me to walk home at night without worries but doesn't mean you shouldn't stop being aware of your surroundings. There is a supermarket that is about 5 mins away, along with the cafe, restaurant, bar, dry cleaning/laundry and some electronics store you might need.
The bathroom is fairly small and so is the shower room. Honestly, every bedroom that has a bathroom in an apartment in CA is fairly small so you some of you might have an idea of the size. The spray of the water in the shower is weak though... and I didn't use the kitchen, only the microwave so I have nothing to say about that one.
Ajit is nice and welcoming, he'll let you know whats good in the area and the locations of good drinks. Be prepare to write it down, although I already reviewed the area before I arrived so I followed everything easily.
And that's pretty much it. Just I mentioned, it is mostly good for someone who's going to be out walking for long hours. And of course if you are traveling, always come prepared, food, drinks, rations, towels, hygiene stuff and etc. Always see Airbnb as a temporary borrowed place to stay, so don't expect too high as if it is a hotel.
Oh and another thing, if your room suddenly got a power outage, there is a circuit breaker inside the room (not sure if every room has one). No need to switch on and off the levels but there is coin bank next to it, just insert a quarter and rotate the dial to turn the power back on. Hope this review helps for others.