Let's start with the positives
Apartment was clean, had reasonable amenities and is a fantastic location if you need to catch an early train from Euston or if you want to explore Camden. Check-in was quick and flexible, check out can be completed by the guest.
Unfortunately this apartment is one of many let out in the same building and the walls are thin as paper. We got barely any sleep even with earplugs. External noise is okay, and you get used to the train rattling quite quickly but we could hear the conversations of other guests as though there were in the same room as us. Additionally, the beeping on the door access mechanisms, opening and shutting of doors, and people moving up and down the stairs are extremely loud (and goes throughout the night, its Camden). The apartment block has stringent rules for loud noise, but even average talking tone can be heard clearly through the walls. Wouldn't recommend unless you're a very deep sleeper, used to noise, or planning to be out in Camden until the wee hours anyway.