We did check-in after 9 pm so it will have a 25 euros charge for that. However, be aware the landlord charges you a late check-in fee if your flight has been delayed. I was been told any flight delay that I should text them before the take off. The communication wasn’t clear to me.
Other than that it was a pleasant few days of stay. The place is clean, good amenities as described. If you would like to take a night stray in Barcelona, the location is decent.