I'd like to hear a little more evidence from people bagging on a Swaro scope here - I get it if it's a personal preference thing, or if you personally ended up with a lemon or something, but to say they aren't durable or don't work is about like criticizing an F-22. They're held in extremely high regard, and will usually be a top first or second choice for someone, except for those coming out of the tactical/tacti-cool community, who want all the magnifications and all the christmas-tree reticles, and damn the optic if it isn't night vision compatible.
You might find a few lines or models of scopes that are as good as a swaro Z8i, but you're just not going to find one that's better, broadly speaking. If cost isn't an issue, most of the deciding factors for people seem to be a very feature-specific preference.
Between glass, functionality, durability, low-light coatings, weight to magnification, etc, with all factors combined, across all of them averaged out, I'm just not aware of a better scope for actual hunting use than the Z8i series, especially if the owner isn't experienced in long-range precision shooting and doesn't need special reticles, or turrets they adjust thousands of times.
I've gone with Z8is for a number of my practical-use hunting guns over Schmidts, Marches, Tangent Thetas, Zeiss, Leupold, and others - those are premium scopes from killer companies, and for the most part are equal to the Z8s and may exceed them in one or two categories of measure. And for the most part, I can find a number in each company's lineup I'd be happy to have on one of my hunting guns. But on the whole, for my hunting guns, I keep going back to Swaros because nothing offers a better fit across the board for the practical realities of carrying a gun long distance, putting game on the ground fast, in any legal shooting light, and in any lighting conditions.
OP, the scope you've got on offer, and the price, are outstanding. The flex turrets are also excellent for the practical realities of hunting, especially for someone who isn't running a PRS gun. Do you need that quality of scope to hunt? No, absolutely not. It's largely luxury, where performance really only excells at the margins of extreme conditions, like getting 5 more minutes of usability at the end of legal shooting light, or mitigating glare. Do you need that much high-end magnification for hunting? No. Mostly, you max out at around 16x-18x for practical usefulness with FOV and recoil. And frankly, if I had to choose between a $500 scope and a $3000 pair of binos, or a $3000 scope and a $500 pair of binos, I'd go with the premium binos every time, at least for the Western big game hunting I do, as I'll spend literally 100x the time behind binos that I do behind my rifle scope.
But your scope absolutely is a world-class hunting optic that will last a lifetime. And once you spend some time behind it, you'll never want to go with a lower quality scope again.
EDIT: My only concern with what you've mentioned are the scratches on the ocular lens. This would cause me to hesitate doing the deal if it was online only. If you've seen the scope in person and have personally verified the scratches are both minor and not a problem, then it's a great deal. The exterior scratches are cosmetic and wouldn't be a concern, unless they looked more like dings indicative of the scope having taken a fall or a hit.