Unfortunately very disappointing listing. The bed is a 120x190cm, which a large single bed, not a double bed. The host defended themselves saying others didn’t mind but :
1/ others have said it in the comments which I discarded initially as them being « picky ». They were right.
2/ A person travelling with a kid, or two very young adults (ok with sleeping on top of one another) would be ok.
Sleeping is an important part of the experience so for me, having one of us sleep on the floor (which we had to) overshadows the fact that the place is nicely decorated or well located. The host should just change their bed for a two people one and acknowledge the inaccuracy of their listing when a guest points it out. To add for clarity to previous comments, yes, it’s quite noisy and on the ground floor (bedroom is street-side and one wall is shared with the building entrance).