Ok so here are a few shots with DA15HD I recently bought, literally unpacked and then packed for the trip. So no time to learn the tricks, just clicking away.
It's excellent when space is limited...
...or the extent of what you want in frame is significant...
...or if you're in closed space and you just want all of it in the frame...
...or you want a lot of (close) background for your object of interest...
...also starbursts if that's your thing...
I was wondering whether I'd prefer SMC version because of nicer starbursts but it seems they are not my thing. I mean, nice here and there but not really critical.