I bought the PRISM+ ARC STEALTH DUAL and the ARC LITE during COMEX. It was very easy to install, and very easy to understand how to tighten and loosen everything to the ideal setting.
Ordered it as a set during The IT Show. Easy to set up with my OmniDesk. Once done, positioning the monitors were a cinch. Made the heavy monitors feel like they were featherweight. No regrets purchasing this.