Adding another data point, well maybe 2.
Bought one new, it was a no go, back it went after a few weeks of fiddling with it. Bad, really bad out of the box, could not even get it collimated. Figured it was bad luck, as I exchanged it for a 152 that despite having a prominent zone did provide nice views without any centering issues. So, many years later I bought a second 178, used and at a bargain price. Gentleman I bought it from agreed to take it back if I could not align it….I would soon find out why. Scope arrived de-centered. I did manage to get it centered, but would not hold collimation more than a few nights. Even with the gentlest of handling. In the end, this one also went back.
Glad some people like it and were able to make it work. The two I owned were not even remotely fit for purpose. Without a doubt the worse scope(s) I have ever owned by a long shot. Would not own another even if it was gifted to me. And to think I almost sold my 6” D&G to help pay for the first Meade, was a mistake that would have been!