I am not a fan of LPVOs. I don't like playing with the magnification or the different head positions that are ideal at min or max magnification.
I am strange that way---I can't compromise.
I have 9mm and .45 ACP guns. I have no interest in .40 S&W
I have 5.56 and 7.62 guns. I have no interest in 6.8 SPC
For optics, I either do a scope (3-20, 5-25, etc) or a red dot.
I do not like optics advertised as "the best of both worlds" (like those ammo choices above) because IMO they are not. I have not really looked through an ACOG in 10 years though and have starting thinking about one again since there are LED versions now. I was in the Army when they first started showing up in large numbers (prior to my '02 deployment to Afghanistan) but I was on a machine gun for so long I only looked through them on other people's rifles and have no experience with using them. Eventually I was issued an M4 but we still had way more M68s than ACOGs at that time.
I currently have a T-2 on a 16" .308 that I have been contemplating one of these LED ACOGs for. I just hate to buy something only to sell it because it was no good up close. My local range has targets from point blank to 500m. I am pretty comfortable red dots out to 300m, moreso than most these days it seems since the targets are just stationary.
The Elcan SpecterTR 1/3/9 looked promising as a "compromise" optic but it seems like it was DOA. Have never seen a single full on review, just some anecdotes that it was like looking through a straw (remember the Mark 4 CQ/T?) at 1x.