I bought a license for the Tegeler Raummaschine. The sound quality is good and the ease of use is excellent. However: Activations technically are limited to 3 activations with no means to deactivate the plugin before swapping the hardware. This means that by default you only could ever install it on 3 machines. Support will ask the devs to reset it for you after reaching the limit but in my case it took more than two weeks to do so as it was holiday season. This really needs improvement IMO. The plugin itself is good, very easy to use and minimizes artifacts during parameter changes. The reverb is lightweight on the CPU and excels at shorter reverb times.