I will remain somewhat neutral.typically on forums I read there's a lot of "my team is better than your team" with info that is anecdotal at best as regards scope brands.
The amount of people just on this thread that have attested to failed or problematic Swaro's is really surprising to me given their brand strength (and hi prices.)
There are several forums that you can pick for allegiance to a particular brand and/or model of scope. I believe all manufacturers have their lemons. Some no doubt are built stronger. Be that from design, materials, and or their execution of assembly.
I am pretty sure you can find failures in all of them. Those failures become most meaningful when it happens to your scope, or a buddy's. I have a few brands of scopes, including some of the Z6's and Z6i's, Leupold, Leica, Kahles, Schmidt & Bender, Tract, and maybe one or two others. I will not be happy over it, but I know they can all fail.
Somewhat recently, I have had one failure of one. Luckily it was on the range. That scope had well over a decade of use. Hell, it was one of my favorites, on a favorite rifle. I don't recall if I bought it used, as a demo, or new. I have bought that scope in all those statuses. Two days prior, I shot some pretty dang good groups with it. It was not a Swarovski.
The Swarovski's that I have, have not seen a lot of use. Probably the 2ea 1-6x24E illuminated on 458 Lotts have seen the most use. One was bought new and one was bought new. My others are on less recoiling rifles.
Granted shipped in the box as a failure is the biggest pisser.