Free (as in beer) and open-source; it's great that you can run it on a VM server and just be up and running in literally minutes if you're familiar with similar software as well as Linux in general. Review collected by and hosted on G2.com.

The Windows client software is free but can't be auto-updated from the server. No client for Raspberry Pi, even if you run Ubuntu on the Pi - there's just no version of the client for ARM at all. Well, there might be; but it's not a free one. Some of the design options are a little convoluted for general use. Create a slide 'layout,' then add empty 'regions' to put each 'content piece' in is more complex than the needs I have of the system. I recognize situations where that level is of great benefit but for my needs I'd love to just drop the content pieces directly onto the slide instead of needing to make 'regions' for them first. Review collected by and hosted on G2.com.