4.5 stars
To avoid echoing the other reviews, which were instrumental in me choosing this outfit for my jump, I'll talk about my experience.
First off, the only negative is the waiting time in the morning. It was not unexpected, I just wish there was a better way (ie, more planes/capacity). Be prepared to hang around for a bit, bring a magazine perhaps.
Now, the positives. Awesome customer service where the staff cared that I had a good time and was safe - the two most important things (and not in that order) for something hedonistic like jumping out of a plane for fun.
If I end up back in Vegas I would revisit and do another jump because I enjoyed the first experience so much, which is probably the best compliment I can offer.