So good, so far...
I'm taking 4 buddies with me to PUJ in August. I've booked through United Vacations (I think it's Mark Travel) and all 5 of us are on one PNR, I've used 5 RPUs that have already cleared on the outbound legs (SLC-DEN-EWR-PUJ). The PQMs, PQSs and PQDs are showing up on the view reservations calculating right based on my/their status. I've had a good experience with them so far and when there was a schedule change that required an overnight in IAH, they were great (but 1K had already resolved it for me). I guess we'll see come August after the trip is complete - but it was too great of a deal not to book with them.