We used them last April from Newark to Cancun with 14 people. We did not pay for assigned seats, but we all sat together when we checked in. We did have problems after booking with flight cancellation, but after I pleaded with the agent that called me, she went above and beyond to accomodate our party. Apparently, Apple Vacations wanted our seats because they use USA3000 as their charter flights. We ended up switching from JFK to Newark, which was less $. Then they sent me a voucher for 1 free flight for my aggrevation.
The plane was nice, no delays. They had movies on the plane and they also gave us a meal with the international flight.
I would use them again. Can't beat the prices