Went to Reykjavik out of Gatwick with them for a stag do. The crew were very good. Kept the drink flowing but gave us the impression they wouldn’t stand for any nonsense which made us behave. I fly with ba a lot and I found wow airs customer outlook was less stuffy and more friendly.
As for the plane, it was modern and clean but no entertainment which doesn’t bother me on shortish haul.
Very surprised to see their onwards connections to the states and particularly anchorage. Kept that in the memory bank.
Not read any reviews on them so can’t comment on that but I thought they were rather good.