Download at the service's website.

Pros: This program runs fairly quickly, most anyone can join a session which is not the case for many free and low cost desktop sharing services. Fortunately, you just click on the link, download the one file and you're up and running almost instantly. It's a great tool for fast and easy desktop sharing. You can record the session in a proprietary BS4 format that doesn't allow you to redistribute or incorporate the screen recordings in other video.