I have one from TimTam and it is fantastic. I recommend it if you like deep tissue massage. I find 5 minutes with it is more effective for the major muscle groups than 20 minutes of a roller (Grid, rad roller, etc.) or lacrosse balls.
It is definitely a luxury item but a worthy investment.
The only downside I find is that it is a bit noisy but I believe the newest TimTam model is quieter.
I have two Theraguns (G2 and G3) and a Hypervolt. My go-to at this point is the Theragun G3 Pro as it’s more powerful than the original Hypervolt. I’m a fan of both but would recommend getting the Hypervolt Pro if you go that route, as you’ll likely want the extra power.
I was once a licensed massage therapist and already owned quite a few massage guns. The bob and brad is pro the best (and a fraction of the cost). I've had the theragun, hypervolt, kraft, etc. I held off on buying these when they first became a thing because I didn't think it was that useful and boy was I wrong. The percussive therapy increases blood flow to the area, improves range of motion, gets rid of lactic acid build up in the site, and essentially aids in overriding pain signals to the brain.