If I had my druthers, I'd like an Oehler, but they are spendy, so I'm fairly happy with my Shooting Chrony Beta Master.
The readout stays on the shooting table, not downrange like some units, stores 6 strings of 10 shots each, reports each shot velocity, summarizes with Hi, Low, Avg, SD and Spread for each string, and it seldom has a failure to read once you learn to read the ambient light and shade it or use the screens accordingly. It folds up into a very compact little package that I can carry in my shooting bag.
The tradeoff for portability is the sticks that hold the sky screens are two-piece and a little wobbly and the sensors are only 12" apart, making for half or one quarter of the resolution of the 2' and 4' (Oehler) units. It is all steel and pretty durable.
The instruction booklet is horrible, and it takes a while, jumping around the booklet, to figure out all the different button pushing sequences, to get the function wanted. After some practice and making my own cheat sheet, I have it down where I get what I want quickly.
I already had a good solid camera tripod, so at about $130, it was good value for the money for me.