Flew Finnair J in June/July 2013 and even though it was the old angled seats, I actually had enough sleep to be able to last until check-in time (6:30 am arrival in HEL, hotel check in was 3pm), and vice versa on the way back through HKG.
Service was prompt and enjoyable, but none of the smiles and over-the-top hospitality you find on the Asian carriers. Personally, I'm looking for an excuse to fly Finnair back to Helsinki, but the opportunity hasn't arisen yet.