I've only had this for a month having bought it on this very forum from Mark - here's the thread
It is a stunning instrument and is very similar the ones used by numerous pros around the world. This is very much a reluctant sale!
The only change I've made since buying it from Mark has been a string change to some new Daddario XL's. It absolutely sings.
Here's a video of the man himself in action on a Mullarkey (when it was referred to as the JV-S2)