I used No Cover Nightclubs to guest-list myself and six friends at the Ghostbar. The experience was very smooth. We showed up at 10:30, which is a little early, but fine for a spot like the Ghostbar, which is more of a bar than a club. There was only a short line when we arrived, but we were able to bypass even that line.
The Ghostbar is a cool venue because of the view of the strip. I didn't post any photos other than one on a private FB account, but I'm attaching a couple you can use if you like.
Thanks for the service.