The irony of course is your fear of change to use an interface that is outside of the norm...
Not really. I've used many different 3d modelling applications. I don't mind any taking the time to adapt to any interface providing it isn't fuggly and reliant on the memorization of keyboard shortcuts.
... it's stunningly good for a free application.
See, I've never got this "I wouldn't pay money for it, but it's good because it's free" attitude. Rubbish is rubbish, regardless of how much or little it costs. At least, that's my opinion. If I poked you in the eye with my finger free of charge, would this make a poke in the eye a good thing?