OK was very OK for me last time I flew them in C-class. They were offering excellent service even on an one hour flight (PRG-AMS). I think they were outranking the major EU-airlines. I don't think the change of 'friendly' upgrades is so big. So don't count on anything. I would rather see what their best price in C is. Sometimes they can be amazingly affordable. EUR. 900 AMS-PRG-DUB once.
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Cheers,
Brenno.