Works exactly like my Archer's Choice model which keeps it simple! I compared distances and found them to be exactly the same out to 168 yards on cement wall. Past that the Archer's Choice model does not register. 550 model does 369 from where I am sitting. Both are crystal clear and function instantly. I am pleased and ready for fall NC and Texas hunting.
Pros: Fast, accurate, easy to use, compact
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.