My experience of AVOs was mostly good, and the rears which were already on my Roadster lasted well. These rears started to leak after a lot of bottoming out, which after fitting Rog's assists would not be a problem anyway.
Some of you will recall that after a Highland trip, and losing a front top mount, I fitted Spax Gaz at the front, and more recently added to the rear, so I still have a couple of decent rear AVOs in the shelf.
I'm very sceptical about the dark art of dampers on Trads, after personal experience. Driving with one disconnected should show, but it didn't. My GDI non adjuatable Spax were excellent from new, and adding AVOs made little difference, other than being slightly harder. My GDI remains on AVOs. The Spax Gaz on the front of my Roadster were subjectively more compliant, but they have a shedload of adjustments, so how can you ever really square this circle? Now Spax all round on my Roadster and set soft. It feels good, but little difference to AVO, and little difference to having one disconnected.