OP, I own a road bike with shifters like the Super Mirage, and a Mirage with the DT shifters.

Both shifting systems are good! Different sure than the MTB systems you are used to, they'll likely feel awkward at first. Just practice till your choice becomes second nature. I learned on DT's then got my hands on brifters later. Look at it this way, practicing means riding, and riding means fun! I don't think you can lose with either choice, the Mirage has thus far exceeded expectations. The Super Mirage might be a tad trickier to set up out of the box, but I can't imagine it would be too tough. I'd like to hear an update when you get your new bike!