I was getting impatient with finding one and i was stuck between the 2015 MBPR and the MBR. Ultimately combined with the late shipping and my needs i decided i wanted the Retina Pro. I still am thinking about grabbing a MBR for the wife though. I also played with the MBR in store last Friday and thought the trackpad was nifty! And i actually prefer it over the old one!
I picked up my 2015 MBPR today and i absolutely love the trackpad. Haven't even tried all the new things yet. But just the clicking it is awesome. Hard to explain, i swear to myself its clicking down, but its not
I showed the wife and she was certain it was clicking and said maybe it locks when the computer is off 
You don't need to press as firm, just a natural gentle little touch gives you the click.
. Anyone here finding it hard to adjust? For me it was MORE than a welcome change, i prefer it to the old. I mainly am not a tap to click guy, i like the physical click. And i like to swipe back and forth from pages. And the two finger smart zoom.
I picked up my 2015 MBPR today and i absolutely love the trackpad. Haven't even tried all the new things yet. But just the clicking it is awesome. Hard to explain, i swear to myself its clicking down, but its not
You don't need to press as firm, just a natural gentle little touch gives you the click.