Okay well I will be one to speak from experience. I've used Kam several of times over the past years and everything's been good.
Most recently (couple weeks ago) I planned a bachelor party in Vegas with Kam. We worked out the plan months in advance and worked out the details a week before our trip. Everything went well as planned. He did set up and give me contact numbers to managers/hosts of clubs. All panned out and had free limo rides and no cover charge all night, 2 nights in a row.
We even went to a new pool party in the day and he was able to handle free cover for us! I tried myself and was asked to pay $30 / person.
Total was 8 guys and we did have bottle service one night at Tryst too. Jai walked us into Tryst and it worked out fine.
I see where some of the poor reviews come from, if you're looking for a company/host to hold your hand every second of the way...this company may not be for you. He will give you contact numbers for when you're there, and you should use them; use them to confirm, and set details up for the way you want it. Cuz let's face it, in Vegas your plans may change, times may change, and peoples wants/needs may too! This is even more true the larger your group is!!