I owned a LabRadar v1 (large form factor) for several years and now own a LabRadar v2 (small form factor).
I used the v1 in a lot of ways - with an inertial trigger in loud environments, without when less so, and primarily for rifle but also archery. While there was a learning curve to get the most out of it initially, overall I was very pleased with it.
When the smaller units came out, I chose the LabRadar LX over the Garmin Xero because I preferred the color screen quality and liked the BC calc function LabRadar has introduced. It was a weak preference and I'm sure I would have been happy with either. I do shoot the LX in loud environments and no longer need an inertial trigger, though it came with one as an option. Good performance overall.
We're now in a time with multiple offerings for Doppler radar units and different techniques coming out, like Caldwell's chirp radar. That's good for us all.
Many people are selling their original LabRadars (v1) to upgrade. They're still very good units and can be had at good prices. Still worthwhile. FYI, the older unit can track velocities out to around 100 yards because of the large form factor (bigger receiver). Smaller units (LabRadar and Garmin) can only operate within about 20 yards due to small size.
Whatever unit you end up with, become familiar with how to upgrade the firmware and keep the unit up to date, as they keep improving. Good stuff.