Product Review (submitted on October 15, 2015):
A belated review because I actually bought the MGB nearly 4 months ago from HMS.
First, out of the box I felt it lacked the punch of some other baritones I've played. After a few days I put on some D'adarrio Pro Arte Tenor strings and it warmed up nicely. Now I can't get enough of the sweet warm sound of the mango.
Besides the sound, I also really like the dimensions of Pono baritones. I bought a new Kamaka Bari a few years ago and still find it to be clunky and oversized. Too much of a good thing. I also have a 1980s Kamaka baritone. These have a slightly smaller body and shorter scale. I love the old Kamaka baritones for sound and playability and the Pono baritones are similar in size to the old Kamakas. Very pleasantly surprised at how much I like this mango baritone!
Joel's setup is also sweet and made it comfortable to play right out of the box.