That has not been my experience -- like many on this forum, there are lots of opinions -- I have this scope, and love it. I also have others in the magnification range, so I can compare. I will agree with Will, that I hated the squish M5B2 knobs. I sent the scope back to Leupold, and they replaced with the M5C2 (I think I have that correct), which is what they now sell on this line-up. Much better knobs. I find the scope to be hardy, reliable, and fast to acquire targets and very clear glass. I also did not pay retail, but let's leave cost aside. I also have the ATACR in this magnification range, and like it a little better, but it was also a little costlier.
I have used Athlon Ares (liked it a first, but would not do it again), NF SHV (good scope, but not as good at Luppy), PST Gen2 (just not a fit for me, I know others like it), Burris XTR-2 (not a fan in this magnification, although, I like their lower-mag scopes). I also liked the Bushnell LRTS, but not so much the higher mag scopes.
What stands out with the Luppy and the ATACR are clearness of glass and durability, and ease of use of the turrets.