My partner and I both purchased a script to run a video site. From purchase to installation to customizations, our experience with ViewShark was Five-Star. The team contacted us immediately after purchase to find out what we needed. They gave us clearly defined turn-times and met/exceeded them each time. Their customer service is unmatched. Don't fret that you have to contact them by email...they are so responsive you'll think you picked up the phone. At first I wasn't sure about having to email my requests, but their fast turnaround will make you forget about picking up a phone. Plus, they can't work at the speed of light to install your script if they're answering phones all day, so don't get stuck on that.
The functionality of the script mimics YT without a question. We searched the web for scripts that could outperform ViewShark's and there was not one to be found. Your expectations will be exceeded, and if they're not, the VS team will work with you to create what you need. If it can be done, they can do it. If a great video script that functions like YT is what you're looking for, this is it...stop looking. It's worth the money.
You will not be unhappy with the functionality of the product or the service.