natural evolution has seen its design superseded.
If natural evolution means having an aircraft with engines that don't work, a finished product which delivers 20% less speed than I was told when I placed a deposit and a residual value that makes a brand new Vauxhall seem a good buy you can honestly keep it. As for training, ask around and you'll find very few schools sing their praises due to unservicabilities.
Not sure I'd call TKS a proper de ice system to be honest. Certainly better than nothing though.
I have no doubt diesel is the future, it's a certainty. But if I were gambling my hard earned right now I wouldn't touch it. And that's exactly what it is. A gamble. Diamond didn't look after their customers last time round. Why would they if the Austro went wrong.