I've been using Boom since it came out. I'm about to give up on it, though. The latest version, 1.2.7, crashes so many times a day it's absurd. Sometimes it completely kills all sound output from my MBP; only doing a restart restores sound output. There's a dialog box after the app crashes that supposedly submits a bug report to the developers. I've sent dozens of these, which include my name and email address and gotten no response. I contacted them directly through support on their website and got only a robo-response and nothing further.
I'm not sure if the bug is completely Boom's fault or if there's some bad juju with the app and Mojave 10.14.x, but I'm fed up with the crashing and the fact that the developers can't be bothered to respond to bug/crash reports.
I'd backgrade to the previous version if I could; had no problems with that version.
Otherwise, I generally have to leave it disabled. Save your money for the next big iteration of Boom 3D, folk, assuming they get the kinks worked out. And I'm not even speculating on the app's future path with Catalina..