I don't buy OS engines because I'm not convinced they are worth the extra bucks. I'm not saying they're inferior, but I am saying they aren't worth the cost for me. The real money is spent when you need repair parts. A lot of OS parts cost double what an equal quality part would cost you. I'm not paying that.
Then, there's the peeling liner thing. Like it or not, people will still worry about nickel. I would myself if I had an OS, however I wouldn't worry much if the piston/liner set cost the same as any other good quality engine, but they don't. They cost double, or more. OS fans have to face this baggage when it comes to opinions on the engines.
Lastly, we're not going to bash products. This is a great thread about a beautifully plated engine, so a tiny bit of opinion is okay and obviously a lot of loving the engine takes the bulk of the conversation.