I purchased the EOTech XPS3-0, which is the most compact of the EOTech holographic sights. The "-0" means it has the 65MOA aiming circle surrounding the 1MOA dot, which is the "standard" EOTech format.
I purchased the XPS3 (night vision compatible) instead of the XPS2 (not night vision compatible), not for the night vision, but because the XPS3 is waterproof to 33 feet instead of just 10 feet for the XPS2. I figured the extra protection would be worth the few extra dollars.
The sight was easy to mount and the aiming is flawless - you can have a less-than-perfect view of the sight window (aiming circle and spot off center) yet still align the dot on your target (no parallax).
A great sight!
Pros: compact, rugged, super aiming point
Cons: -none-
This review was written in the old system and had content requirements that are different than reviews written today.