My husband and I just got back from a Tour of Italy and spent our last night before returing to Canada in London at the Sumner Hotel.
I researched many hotels before I booked and choose the Sumner based on the good reviews on Trip Advisor and other sites. We were certainly not dissapointed. We were only spending 24 hours in London and this hotel was in a wonderful location. We took the express train from Heathrow to Paddington Station, a quick taxi ride and we were at the Sumner- checking in before noon was no problem. A short walk away was Oxford Street shopping,Marble Arch and Hyde Park where we caught the hop on hop off buses for a tour of London.
Dinner was eaten at Mason's pub on the corner- great fish and chips.
The room was wonderful -large and modern, spotless with a comfy bed and linens. Our room was in the front and very quiet we never heard other guests or street traffic. The bath was clean and modern, not huge but adequate with a box shower.
My husband thought the breakfast was the best yet, it certainly had a nice variety in pleasant suroundings.
The staff was very helpful and polite and let us leave our luggage in reception to pick up for our afternoon flight.
When we return to London we will certainly stay at the Sumner and will recommend it to all our friends.

The Sumner was very clean, bright and comfortable. The beds were amazing and the hotel staff very friendly and helpful. Our room was very small but the amazing bed made up for the small room size. Great location and 2 pubs and a laundromat right around the corner.

I spent 4 days here while on a business trip and was extremely pleased with the accommodations and amenities. I booked this based on the positive reviews on Trip Advisor and the price (reasonable for London and the quality of the rooms) After a long day of work and running around, it was a pleasure to come back to a comfortable, spacious, and immaculate room and relax.

The choice of breakfast foods was wide and everything was absolutely delicious, including the coffee (not alway the best at hotel restaurants) The decor of the hotel from the rooms to the lounge area was smart and stylish without being pretentious or overly modern.

The location is only a few blocks from Marble Arch and Oxford Street but away from the crowds - I genuinely felt that I was coming back to a neighborhood despite several other small hotels and restaurants in the immediate vicinity. I had hoped to try the pub on the corner or the fish restaurant around the block, but only managed to get to one of the several Lebanese restaurants on nearby Edgware Road.

All in all, I hope to return the next time I am in London for business or pleasure.

The Sumner is a small, quiet hotel 2 or 3 blocks north of the Marble Arch tube stop. While it is not "in the shadow" of the Tower or Whitehall, I thought it was well-located, with the quiet street more than offsetting an extra 3 or 5 minutes by cab.

Rooms clean and quiet. Helpful, non-intrusive staff. Good breakfast (cereals, coffee, juice, sausage, eggs, toast) included. Rooms are smallish, but fine. One computer in the sitting room for internet access / EMails. I never stayed on it for more than 5 minutes: internet access was no problem.

IMO, the only reason to NOT stay here is if you wanted to walk to night-time entertainment (e.g., theaters). If you're happy flagging cabs after dark, then the Sumner is your place for all of London.