IIRC the 6:45 is a 737. The feedback over on the SK forum is the LHR-ARN breakfast is one of the worst on the SK system and not worth it (though I guess now better than nothing!). Stock up on the nice choccie croissants in the London Lounge and then you won't mind. I burned two of my *A upgrade certs ARN-SVO and it was marginally worth it. Now of course, I'm moving into a positon where I might be travelling more - hey, ho!