Ok, there was a sale, so I picked up the 7-port square hub.
I considered some of their other hubs as well, but this one uses a newer USB 3.1G1 VL817 controller (two of them, in fact, since many chips max out at 4-ports), versus the older 3.0 VL812 and 811 chips in the other models.
I haven't taxed it with non-self-powered devices, nor tried the aux power input, but so far so good. I have a couple drives, a dock, and an extension cradle I use for easy access, and none have shown any obvious issues.
If it needs more power, I can dig up a Micro USB cable and spare wall adapter and give it some juice, which is much easier than the proprietary power supplies many hubs use.
As expected, the blue light may be annoying in a dark room, and it's s screw-less design, so there's no apparent easy way to open it up and conceal the LED, but it looks kind of neat compared to the typical black lump of plastic.