I've flown Air Europa two separate times. Last year, I flew them from MAD-JFK. I received lounge access as a Platinum Medallion. Their wide-body planes were very basic-they had Wifi for a charge but there was no IFE, other than old TV's overhead on their Airbus A330. They also provided a free glass of wine at dinner. No other alcohol was available, even for purchase.
This past September, I flew them from IBZ-MAD on the ERJ-195. The flight was good, the plane felt newer, and I believe juice and water were served.
I wouldn't recommend them for transatlantic flights. However, their short-haul service is better than EasyJet.
My transatlantic flight was ticketed by AirEuropa but had Delta flight numbers and I received full MQMs and miles based on distance flown because it was a consolidator fare.
This year, I was ticked by AirFrance and received full MQMs and miles based on distance flown again.