Its not pretentious - actually laid back and cool
I was lucky enough to be in Rome with my family in September. Needless to say we did the usual sights and stopped at the DucatiCafe on the way back from Piazza Novanna for coffee.
The place is modern, comfortable and the staff laid back and friendly. Cute too! It was mostly full of everyday Italian families having a treat on a Sunday afternoon - they had some great coffee liqueur drinks and cool drinks for kids. Merchandise in the attached shop was a bit overpriced, and unfortunately they were out of DucatiCafe T-shirts in my size. I agree the impression is different in the photos though.
neil.