I've booked with them a few times, however my last experience was REALLY bad. They others were okay.
We picked a girl from the books and they sent a different girl (we would have told her no, but it was a stag). She kept texting the whole time then wanted us to feed her booze. She was spilling all over the place, got real drunk, told us that we were taking advantage of her and she was going to get her 'man' to come over to our stag and start shooting up the place.
Needless to say, we complained, received a freebee from them, however, based on our last experience with them, we are hesitant on using the freebee.