Just did a SW update on mine via the Garmin Express app, easy to use. The only issue I have with the Xero so far is that the screen can be a bit hard to read depending on the angle and ambient light.
My self-imposed rule, now that I'm retired, is that if I want another gun, I have to sell one that I already have. I recently bought a Huben K1 in .25 cal and am selling my Taipan Vet Tactical (it's on consignment at New England Airguns if anyone is interested).
This time of the year, between the skeeters, horse and deer flies, this airgun gets more of a workout than anything else I have. Upside is, the ammo is cheaper.
Unfortunately, all of my hobbies are expensive... chasing birds with my setters across the US and Canada, photography, fly fishing, black powder cartridge rifles and now, PCP airguns.