I did a lot of research before I bought this chrony (God bless the internet) and I was not disappointed. The F1 is a very good value for the money. Every shooter with ammo in storage (and every hand loader) should have a chrony. I bought it to check the velocity of my long-term-storage rifle ammo (so I can shoot the slowest stuff first), and to help me work up loads for my favorite handgun cartridges. It does everything I need it to do. My only problem is saying "no" when friends ask to borrow it (unless they take me along).
Pros: Does everything I need it to
Cons: My friends want to borrow it!
This review was written in the old system and had content requirements that are different than reviews written today.