Originally Posted by
KLflyerRalph
I'm flying BRU-HEL in a few weeks time with AY as an OW Sapphire. On oneworld.com and the Finnair site, there are two lounges listed for Brussels; the Iberia lounge and Brussels Airlines Lounge (for Finnair only). Obviously the Iberia lounge is operated by an OW airline, but the Brussels Airlines' one is better.
As Sapphire, can I still make use of the Brussels Airlines lounge even though it is not operated by an OW airline but listed for Finnair? Does this include as +1?
Also, do I need to pass by the check-in desks for a paper invitation in this case?
I hope someone can clarify. Thanks in advance.
P.S. does Finnair print proper boardingpasses (thick cardstock) at the check-in counter? I'm flying the A350 so some memorabilia would be nice. 
You can +1 to Loft lounge,no invitation needed and you will get the printed boarding pass in the check-in counter though they will not write the plane type to there.