I'm in the process of evaluating MadSonic. I'm really impressed and am on the verge of going premium.
I had been running 6.1 on my Qnap TS-451 and thought I'd check out the 6.2 beta before taking the plunge. 6.2 installed fine via the Qnap package, but it completely wiped all my 6.1 setting. I had to setup as if it were a fresh install. No big deal as I was only evaluating anyway.
So my question, for future reference, is how to best update on the Qnap platform without losing all data?