I've got one of the original ones...... misses a shot every now and then. Used a friends Lab Radar the other day........
Both units read within just a few fps of each other.
Don't need to calculate BC or record velocity at distance. Just want an idea how fast they're going.
Are more expensive units better ? Probably.
Is it good enough for what I do ? Yeah.
That being said.... I wouldn't replace it with another. There are too many other good options for units that don't break the bank ......
But I won't replace it till it quits ! LOL