I gave my Chrony to a good buddy for a bd present years ago. I then bought a PACT MC2 which I have used for 10 yrs or so. All I care about is the velocity of new loads, although it gives you lots of data like mean, median, variance, etc. I use my own data and calculate the others. I think any basic unit on the market will do a good job.
I once went to a seminar where we did some shooting and chronographed our loads. I watched some poor guy shoot off one of the sky-screen legs and got a real (temporary) kick out of it. Then, at a later date, I did the same thing. What goes around comes around.
Sonny