I was front row center orchestra. The stage is high (around head level), so if you don't like craning your neck, I'd recommend maybe 4 or 5 rows back. A couple in right orchestra front row were reseated in the second row and liked it much better. I've seen the show several times so I knew what to expect (in terms of not missing anything) and enjoy seeing the emotions up close, so I didn't mind. If it is your first time and you want the stage picture, they wouldn't be the best choice.
The cast board is: http://imgur.com/ckzXezV, I missed listing Colton Ryan in an earlier post.
From what I recall, merch had windowcards, tote bags, black hats, rubber wristbands, blue sharpies, a henley type long sleeve shirt, one or two short sleeve shirts, a zip up hoodie, scarf, 4 pack of buttons, mugs, water bottles, and magnets (same design as 2ST but with Music Box printed at the bottom).
A few quick additions were ambient notification sounds playing on a loop prior to the show followed by projections and sounds indicating the no cell phone/no photography warning just before it started, which is much appreciated for the larger Broadway house since the start is a bit abrupt. The projection work continues to be refined, too. I noticed the prominent background text during "Sincerely, Me" no longer was the song title, but instead the portion about friendship. The fan video during "You Will Be Found" has a slightly different presentation now. I did still see my clip, which made me smile.
The design is more or less what was at 2ST with the rear projections suggesting more of the setting, but the milk crate has been replaced by a small chest of drawers and it slides onstage rather than rising.
I'll have to post more later since my phone battery is running low.