I have flown all three and I do like the Aztruck a lot. But like 421 I have several hundred hours in the Seneca range with majority in the One and it is a good work horse.
The interlink on the controls just means you have to be a bit more adaptive in strong winds but has never been a problem.
They are cheap in twin terms to operate and reliable. The one I fly is deiced and IFR equipped, being my winter mount when it gets a bit icy for the Cessna!