Really like our LabRadar, but if you are looking at shooting fast velocity the LabRadar only measures up to 3,900 fps. Most of our cartridges don't go over that so the LabRadar is GREAT!
We also have a CED M2 also will measure up to 7,000 fps. The CED is a lot more involved in setting up but I have a system so pretty easy. I also bought "Light Bars" and setup in a BOX so don't have to worry about having enough sun light.
We have our own range so setup is not an issue. If you are going to Public Ranges the LabRadar is very easy to use.