My M-I-L gave me a blue one (don't know who made it) but I really had no use for all of the features. It used 1 AAA battery, could store a bunch of readings, but was a little big in the hand for everyday use. It was about the size of a smartphone, but over 1 inch thick. The blade was very rigid.
If you were doing room estimating or something repeatedly, maybe it would be handy. If I remember, it could record a few seconds of voice as well.
It lives up with my Dad now, he likes the big display.
Definitely a tool that has a future, just don't know when it will be 'perfect' for everyone yet.