After much umming and aaahing, watching YouTube vids and reading copiously, I bought the MU-2 yesterday, and so glad I did! It seems to inspire a lot of affection and devotion amongst it's users, and after less than a day I can understand why. It feels quite different to all my other PayWare aircraft (of which I have more than I should!) but in a good way. Everything appears to have had more care & attention paid to it - from the action of the switches to the general wear and tear, it's a joy just to investigate all the nooks and crannies and see what's what!
I was concerned that my rather anaemic iMac with it's 6 core i6 and 4GB VRAM wouldn't cope, but I'm getting the same frame rates as I do in the stock LR C172 which given the complexity of the aircraft is astounding. No idea how you've managed that but I suspect sorcery!
Still trying to master the engine start procedure, which seems quite convoluted and counterintuitive, but is certainly accurate - I just need more practice and a deeper understanding of the systems, which is quite right and proper. Ground handling/taxiing is still a bit 'lively', but I did manage to hurtle around the Greek Islands at a ridiculous rate, and even managed an exciting but not terminal landing at Santorini! I found it quite a job to shed all that speed for the approach - my guess is that I need to start the approach from much further back and gradually let the speed bleed off.
Anyway, I could ramble on, but suffice to say it's an absolute gem. Enormous thanks and kudos to @tkyler and anyone else who's had a hand in its development. Hands down best aircraft I've bought.