I'm sure I'll wind up buying a Garmin at some point. It scratches a lot of itches. But then, I've scratched a lot of chronograph itches over the years.
It all started for me with "affordable" optical chronographs. I didn't want to shell out the clams for an Oehler so I bought a Pact. It was unreliable and then died. Pact sent me some new parts. It never was right after that. So I bought a Shooting Chrony. It always worked unless the light was bad. Still it was a hassle to set up downrange. And I was unfulfilled . . . .
Next up was the Magnetospeed. Woo Hoo! Do it all from behind the firing line. Never mind that it wouldn't work on short barrel handguns. Never mind that the mass on the barrel affected point of impact. Worse yet, it affected group size. Depending on barrel weight the influence could be substantial. Then, the attachment clasp broke and Magnetospeed said sorry, parts not available, you can buy a new "bayonet." Phooey on that, so I put the "bayonet" money toward a LabRadar.
LabRadar works fairly well, but it's picky about setup. Doesn't always catch the bullet. Interferes with other LabRadars on the firing line. (fixable by changing channels.) User interface is awful. It's better if you use your phone to run it, but when the phone sleeps it loses the connection and you have to restart the whole process. I think a 7 year old hobbyist could have designed a better UI.
Now Garmin has my attention. It appears to solve a lot of my historical woes. I'm sure it will have its own warts which will become evident as people drink the Garmin Koolaide. Yeah, one of those Koolaide drinkers will be me - eventually. At least chronographs have evolved over the years, unlike firearms where there's not much new under the sun.