This is a "for what it is worth" contribution. Up here in Southern Vermont we have occasional get togethers - Ukulele flash mobs. They are great opportunities to meet and share as well as play. The variety of instruments is amazing and I find most people more than willing to share both experience and instruments at the gathering. We just do not have convenient stores that sell a variety of ukuleles. There are so many options out there. I find that I now have a Martin, Kamaka, Mele, Mainland and Bruko. Each one is different with their own enduring qualities. If I had to choose one above all it would be hard. the necks, wood and size are varied. Maybe I am fortunate to be able to have these choices. I also play banjo and guitar and all five of my ukuleles still cost less than one decent banjo.
Pono seem to make excellent instruments - I have never played one. For $400 there are so many great choices out there. Again in the FWIW opinion/experience my most reached for instrument is an old, beat up, Kamaka pineapple, followed up by the Mele pineapple. My old Martin from about 1934 gets played the least. The old Kamaka has a funny shaped neck and the fingerboard is level with the body making is different from the get go. SO - RESEARCH - PLAY YOUR FRIENDS INSTRUMENTS, maybe visit a store if one is available to you.
Sorry if this is off point -
Ian