If you want load velocity info, the LabRadar certainly is one of the top chronographs to consider.
While it works great and is accurate, it is not without flaws. The main complaints from users seems to be the aiming of the unit, missed triggers, and short battery life.
The short battery life issue can be easily solved with a cheap battery pack.
Most people resolve the aiming issue with aiming aids. As simple as a cut to size drinking straw taped to the aiming notch is enough to resolve.
The sound based trigger is probably the most frustrating issue (if yours ever act up). The sound trigger also requires you to place the unit properly based on the type of firearm used (with and without brake, with silencer, 22LR, air gun, etc.) For centerfire rifles, solution is to get an external recoil trigger (or make one yourself)
https://www.thehighroad.org/index.php?threads/labradar-recoil-trigger-diy.872618/
I have been using my home made recoil triggerfor the past few times for load workup. I can setup the labradar at a single location and not have to worry about shooting rifles with or without brake or different barrel lengths. It has made a good product simple and enjoyable to use.
I highly recommend the labradar and a recoil trigger.