I, too, had the opportunity to fly on EC last year (albeit not on their inaugural flight, but rather instead as a guest of FlyerTalk) and was mostly impressed with their hard product (the seats were spectacular, and the food was at least edible) but less than impressed with their soft product (I had two indifferent FAs, although their concierge concept was friendly, clever, and creative, if a bit confusing for bookings). On the other hand, my return flight on L'Avion (which EC had purchased but not yet fully integrated at the time) was FAR better (the purple seats were a bit heavy on the eyes, but the FAs were fantastic and the food fabulous).
All in all, though, my experience was very positive. Would I have paid for that trip? No, but then again I'm not in EC's target audience. I'll take the lowest fare I can find and survive in coach (which truly doesn't bother me), or if I'm looking for a premium service, I'll redeem miles in an F or J cabin. Still, there must be a segment out there willing to pay, even in today's times of tight travel policies. In any case, it was a creative concept and had the potential to be well-executed given time to smooth out the bugs. I'll be sad to see them go.