For the "long" flight from London to Las Vegas we decided to splash out on a slightly better class of cabin. It turned out that the business-only carrier MaxJet was opening up precisely that route the day before we wanted to travel, so we took the plunge and forked out the small fortune for the tickets.
Check in was pretty casual, and the lounge had all the required amenities (but was perhaps a little busy due to the three MaxJet flights departing in quick succession at that time of day). Our plane was about 90 minutes late in taking off, but that didn't seem like such a big deal when we had 11 hours in the air to endure.
The seats on board were pretty comfortable, and although they didn't recline to full flat bed positions, they went far enough back to allow for some shut-eye. They also give you a portable media player to watch movies on. Whilst in principle this is a good idea, they probably need to invest a little more in the quality of the programming to make it really work. Still, it did help while away the time we were in the air.
The food and wine were good. The service was great - friendly and attentive.
All in all, I think it was worth the money for that kind of trip. We were able to walk off the plane and go straight to the casino and lose some money without feeling too groggy.