I flew WTP on the dreamliner back from Austin last week - can't really compare with other WTP experiences as it's so long since I had a long haul flight I've not managed to upgrade or get Op-Uped on

Survived though! Seat is fairly comfortable, in-flight entertaiment screen is a good size. I was in the front row (cot seat) which I think has more leg-room then the other rows. This was an overnight flight and I managed about 4 hours sleep.

A disadvantage is that there are no WTP bathrooms and you have to use the economy bathrooms right at the back of the plane.