Have found it useful for other things too.
Regularly check car tyres
Air gun is useful for blowing dust and dirt out of components.
Have an air ratchet too.
That may be a problem, you’ll end up getting lots other toys too
I was seriously considering one, but the next set of tyres I got (folding Maxxis; On-One Smorgasbord & Chunky Monkey) went up with the trackpump alone. I had built up the rim cavity with some duct tape and this snugged the bead down. This combined with schraeder valves cut from old tubes worked better than rubber rim strips (they need to have the threaded stem and lock nut like a presta). The bead didn’t sit properly due to the lump at the valve on the strips but it can with the separate valve.
That aside, have you tried with the valve core removed?