I was able to check-in quite late at night without any issues. our flight was quite late at night and I had 2 kids with me, the flexibility of a later checkout meant that me and the kids could rest properly after our journey, have breakfast in peace and check out rather than rushing.
The place was v. clean and had everything you could have needed. we had tv, board games for the kids so they could occupy themselves and we could do other things. quite spacious apartment with a separate bedroom and aliving room. the bathroom was also quite big and most importantly v. clean