First post so cut me slack, lol.
I'm in the same boat w OP; hadn't preordered, was just driving around checking a couple places. Went to my second carrier store (att), walked right in and got one. While waiting for my associate to get me, played w the demos. Now, I'm a big guy, 6'5", 200 lb but FOR ME, the plus was too big. I one hand a lot, and it felt uncomfortable going to the opposite corner. Reachability worked but I didn't love it.
I will say tho that the screen is gorgeous and the plus IS seductive - I did give it some thought.
Props to att also, was surprised how well they were set up, no line by 10am, parking to driving away in well under an hour.