Edit, the SH app on my phone is crap.
Man, there are some passionate haters on this website... I would take with a grain of salt all the negative comments.
My personal experience with IOR has been nothing but positive. I owned several IOR scopes through the last 15 years and bought them all from the factory in Romania, bur never had to send back a scope to the factory for service. I wouldn't comment on the Valdada service experience either, since I never needed it and never interacted with them.
I will only speak to my experience owning these scopes throughout the years.
The glass is made by Schott Germany and it is fantastic, the turrets are well made and mechanics are solid, some of the best clicks in the industry on a scope other than S&B. I currently own a 4-28×50 and a 5.8-40×56, both in MRAD, I also have the new 5-40×56 on order. I love the fine Christmas tree reticles with the dot in the middle.
For what I use these scopes for, they work great. I recently (3 years ago) got into competitive shooting and have tested everything from NF, Leica, March and IOR, but for these long range matches I keep coming back to IOR. They track solid and I have not had issues.
Do your homework, go find a dealer and take a look at the scope you want. If you like it buy it.
These scopes are built like a tank, but also weigh like a tank, which means that they are ideal for static bench or prone shooting applications, rather than carrying the gun on your back for a week on an elk hunt.
just my two cents.