FWIW, I've got a Burris Fullfield II 3x9 40mm on a .300WSM shooting 180 gr. Fail Safes... and I've had nothing but good experience with it thus far. Admittedly, I've only had it for two seasons... but absolutely no problems... and I sure like the brightness and how easily I can acquire the correct sight picture.

No problem with eye relief either.

And it has the Ballistic Plex reticle, which I like as well.