I just went from stock to Stasis Ohlins SL coilovers. I have only had them on for 2 days and the difference is quite dramatic. They are rock solid at triple digit speeds on the highway, they’re not as bouncy as stock either which is nice.
I think people make the rebuild requirement more of an issue than it is. I have read on the forums of people with both the SL’s and the motorsports with over the 15k miles with no rebuild needed, Im pretty sure I read a post where someone had over 50k miles and they felt the same as new at that point, not positive though.
These dampers are better quality than stock, unless you are road racing your car every weekend for a year I don’t see how they could fail. I bet a lot of people with blown dampers either did not install them correctly (you must torque the bolts with full weight of the car loaded on the suspension) or they track the car consistently.
The only reason you need to rebuild more often is if you want to stay in line with the Stasis warranty. If you simply ignore that and rebuild when it’s actually truly needed than it only costs 400 dollars. The rears are super easy to take out yourself, the fronts a little more complicated, but still easily done by a DIY’er.