Nice flat for a short trip to London. It's quiet there (given that it's a large and busy city), but sometimes you might hear some noise from the ferry terminal (but it's completely acceptable and audible only when the widows are opened up)
Located 7 minutes of walking to the nearest Canary Wharf metro station, thus it's a good base for sightseeing.
Thames is just next to the apartment, so you might as well give yourself a long but a pleasant walk on the Isle of Dogs (and located on the south bank Greenwich observatory), or go straight to the city centre via Thames Path (around 60 min of walking to the Tower Bridge)