Open source is good and typically, the people who support a lot of these options are dedicated and very willing to help. On the flip side, the development, though active, is typically slower because it there are only one or a few people working on things in their spare time.
I have Beyond, I have LSX, I have Spaghetti, I have used LaserBoy and a soundcard/correction amp DAC. The one I use... Pangolin, all the time, every time. I even use it for non-laser productions. The DMX suite in Beyond is extremely powerful. Though the Pangolin sphere is locked to Pangolin users, there are a TON of users out there and likewise, content. I won't say the other options were a waste of money but I just don't use them. There are some really advanced things Pangolin can do that I haven't even unlocked yet but the best part is, I haven't had any trouble progressing. I would say the main difference is learning curve. I see Pangolin like Apple, Powerful and simple to use right out of the box and you can go as deep as you want, all the way into scripting.
I know I am flying my Pangolin flag again but it is great software.
If you're the smartest person in the room, then you're in the wrong room.