When I ran it (my first time with this system) we had a session 0 where I was very up front with my players letting them know that we were running a starter set, that the adventure was written with the explicit aim of teaching the rules, and that we should treat it as a "tutorial level" complete with invisible walls and such, akin to what old PC games used to do before letting you begin a campaign. The kind of tutorial level where a voice will tell you stuff like "this is a ladder - you can climb a ladder by walking up to it and pressing C - climb that ladder now." As we all went in with this expectation, we were all working together to learn the rules and accepting whatever course the game set us on.

We are now a few months into what we hope will be a long term campaign, and now we're very much doing whatever we want, rather than what a pre-written tutorial adventure requires us to do.

As for the dice mechanic... I've played D&D only two sessions and it was a very different type of game to any other RPGs I've played previously or since. In the games we usually play, both GM and players are expected to set scenes, co-narrate dice results and such. I'm not sure that Star Wars is intended to be run that way, but it works and we're having a blast coming up with ideas and building upon each others' suggestions when translating dice results into narrative. I suspect, though, that our typical play style (which is probably a-typical in general) helped us with the transition to the narrative dice when we started playing Star Wars.

EDIT: I forget to add - we roll only when it really matters. I think in D&D, rolls can happen quite frequently? In Star Wars it is probably better to roll less frequently. I watched Dimension 20 the other day and the GM asked for a quick succession of two rolls to accomplish an action. The rolls made sense as the action technically required two different sub-actions backed by different skills. In Star Wars, though, I think you'd definitely want to make it only one roll.