I have it installed on one of my booths. It's Ok. The reason why I went with that software at the time is because it was the only one that met my requirements back in 2013-2014 when I purchased it and also was one of the few vendors who would support both Nikon and Canon cameras. Most photobooth software packages have come a long way since and can take just about whatever hardware you throw at it within reason now.
That booth is nearing the end of it's usable life - hopefully I'll be rebuilding it over the winter. I've purchased Darkroom Booth to install on the new computer, but have not yet done anything with it because it will require taking everything offline, testing, retraining operators etc. and I can not afford the interruption in workflow during wedding season.