Pros: good location across from Hyde park, close to a tube station, pretty quiet, really nice staff and lobby, and elevator!
Cons: if you’re coming from America, you might be shocked by the size of the shower and the entry way to the room. I’m 5’6” and I was barely able to reach above my head. I know this is typical of the UK, but I’ve also stayed in other hotels with a bigger shower (for a similar price).