Let me start by saying this flat was great for our needs and offered at a very reasonable price, so we'll likely return for both work and pleasure trips.
Many pros:
This flat is a great base of operations, and in a superb spot for either work in the financial/insurance district and/or touring the city. It's only a couple of short blocks from the Mansion House tube station, so extremely easy to get to/from Paddington and thus the Heathrow Express as well as to tour around London. It's a short walk to St. Paul's Cathedral, a comfortable walk to Tower of London, a short walk across the river to the Tate Modern, Globe, etc. and so many other places. It's also only 1/2-mile/1km walk to Lloyds and the insurance district so perfect for that as well.
There are restaurants and pubs in the immediate vicinity, making meals and drinks easy.
The flat itself is clean and comfortable. There's nothing fancy about it, but it serves its purpose. The kitchen is newer with a good sized refrigerator, freezer, stove, microwave, etc. We only used it for storing breakfast foods (cereal, milk, juice) and wine, but it seemed equipped for cooking. The bathroom is clean with good water pressure. The living room is functional and comfortable enough to relax or work, and the wifi was sufficient. The balcony isn't very useful because it overlooks the courtyard with trashcans (and sometimes smokers), but it adds a nice buffer.
There are city bikes literally outside the building's door, so if you want to bike around the city it couldn't get easier.
Helen was very responsive to my questions leading into and during my stay, and the answers were always what I needed.
The following aren't "cons", but just rather items that will give you more information about what to expect:
- As other users commented, you do hear the tube trains underneath the building, but it's just a low rumble every once in awhile. It's quieter than other flats' street noise, and this flat has zero street noise so is otherwise nicely quiet.
- You only get one roll of toilet paper, no paper towels, and body wash rather than bar soap. If you like wash cloths, bar soap, or stay longer than a couple of days, you'll need to stop at a (nearby) Tesco for those items. Not a problem, nor expensive (especially given how reasonable the cost is for this flat), but something to note.
- The living room windows are only ~10m from the WeWork office windows so if you feel uncomfortable with office workers looking at you relaxing during the day, the curtains must stay closed, thus removing natural light. Because it's a first floor flat in a small, enclosed courtyard, it's not overly bright natural light anyway, though.
I wouldn't recommend this flat to anyone who is looking for a "wow" experience, but if you need a clean, functional space in a prime location for a reasonable price, this is a good choice.