Picked up 10 of these to use with a portable repeater as an event radio system.
The software acts very similar to the TYT MD-380 software. With only 16 channels, programming was a snap.
I used the same USB to Serial/Kenwood-type cable that I use with my Baofeng and Wouxun radios.
The initial read shows a random mix of simplex channels in the 450-456 range, with a 400 and 469 programmed in. I programmed in a few "Logistics" frequencies at the bottom end of the range, a couple of ham repeaters, a couple GMRS channels, and a couple of frequencies in the 510 range, then put it on the service monitor/spectrum analyzer. The radios have the typical spectral purity of the inexpensive Chinese radios: They aren't perfect, but not as horrible as some of the early Baofengs. They have good, clean, loud audio.
I plugged a pair of them in to charge off the powered USB hub on my bench, one with the USB plug on the side, and the other in the drop-in charger. Both charged quickly, and there was only some minor issues with the drop-in charger as I moved it around that resolved when I set it back down.