Just wanted to tell anyone interested, I had a terrific experience with Mario (Mr_K).
I bought a REDD 47 board and 3U box from him. Unfortunately, there was a problem with the shipping - took 6-8 weeks and I was really nervous! Mario kept in communication with me via PM to find out if I'd received the package, and when I hadn't, he followed up several times with the shipping company. I guess there was a holdup in customs and then a delay due to the Christmas holidays.
Yesterday the box finally arrived at my door. Everything arrived in perfect shape! You shoulda seen the incredible job he did packing the stuff! Great communication, great follow-through - he's a heckuva guy so if you're thinking about pulling the trigger, just know he'll do right by you.
Thank-you Mario for being proactive and caring about the people you work with.
Best,
Mike