Pono's tenors are well-regarded and rightfully so. I, too, was intrigued by the notion of an adjustable truss rod, but now that I own a Pono ATD, I find it's quite heavy because of that truss rod. Thankfully, mine came to me already fitted with strap button and endpin, because I need to wear a strap with this uke. It's a hoot to play especially plugged in, ( mine also has an LR Baggs 5.0 pickup.) But on its own, it's a bit quiet, though sweet, and the neck has certain baseball bat-like characterisitcs ...even though it also has a radiused fretboard, it is not the most comfortab!e player for me... not by a long shot.
Another tenor I own is a Kanilea Islander MST4, the solid mahogany tenor. It's much lighter,and has a warm, sweet voice... also a very nice neck profile, but it's too quiet for me. I'm currently in the process of making buffalo bone nut and saddle for it, to replace the stock Tusq.
My favorite tenor, so far, is the inexpensive Cordoba 24T.... solid cedar top, laminated spalted maple b&s, it's a gorgeous uke, light as a feather, and a big wonderful voice. Silky smooth fast playing neck...I'm so impressed with this <$200 uke that I'm planning to get the baritone and concert versions in the near future as well.