Check-in and check-out is all done online and would say that whilst there is a lot of communication, the directions to entry could be better and also a contact number would be beneficial. We had a superior apartment with 1 bedroom - really spacious for Paris and comfy beds, even the sofa bed. We were provided with a crib for our toddler guest too. Only things to point out, there's some iron grates by the fireplaces which whilst characterful weren't particularly safe for toddlers. The runner on the stairs had a few bumps too so you had to tread carefully (there is a lift though that we used). We did eat at the downstairs restaurant but hadn't realsied that was where we would get the 20% off so that wasn't offered. No room upgrade offered as far as I could tell. Excellent location though and spacey so a good base, particularly for longer stays!