I've had this scope for ~6 months now. Initial impressions of quality and clarity were high, and remain so. Starts to lose clarity at edges around 8x but still good. At about 3x-7.5x it's comparable to the glass on my older Leupold Vari-X III 1.5-5x20mm. I have the Mueller mounted on my Remington Model Seven in 7mm-08. After bore sighting at home, it took only a handful of shots to get zeroed and get a 1-MOA group at 100yrds w/ factory ammo - the 1/8MOA adjustments are positive and accurate. It's held zero through ~20 rds so far - and the recoil on this 6 1/2 pound carbine is rather harsh. Awesome scope and I love the #4 reticle. In early December I was able to test it in real-world rain/fog/humidity/overcast conditions in North-western Georgia. Performed perfectly, didn't fog up, and the illuminated dot helped tremendously on that 15 min before sunrise Bobcat. I'm sold on Mueller and don't think you can get a better value for your dollar under $300.
Pros: Optics clarity, features, sight picture, price, quality
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.