The ceramic liner is a perk on it's own in my opinion. Without going full nerd with the science behind it, let's just say it expands at a similar rate to the aluminum it is coated to, is tough as nails being a ceramic with a nickel and silicone carbide base, has a lower coefficient of friction than iron while being harder than it, and does a better job at lubrication retention. It also has advantages when it comes to thermal loss by helping to retain more energy during the combustion process.
Not saying it's gods gift to cylinders as it does have some downsides. Much like a chrome plating, once it starts to go, it REALLY starts to go. Unlike Chrome though, it is actually a bit more flexible, so it is harder to get it started flaking off.
I am a fan, if it isn't obvious... heh