I always talk about IOR using the same term. "For the money"
I like the MP8.
The illuminated IOR's that I have owned or seen, have been marginal.
(Compared to my S&B illuminated, it paled in comparison.) But, thats me.
Adjustments on the IOR's I have had were very accurate. Their best quality, I think.
Very tough!! Well built.
Glass is OK. A little overated by IOR fans, but it's good.
I find that when IOR is mentioned, there is a heated debate about them. You either love them or hate them.
I liked my 2.5-10 Tactical. BUT...eye relief when mounted on a .300 Win mag was an issue!!
3 differant people shot that rifle and either got bit, or came close. YMMV