Bought one for a friend who wanted a Sunray Solo2 but alas they are no more.
First thoughts, this is a stripped down Sunray. Cheaper build quality, lack of LCD display, very bright blue LED and a noisy fan.
Flashing the box with the Sunray Solo2 image was interesting with no display. I thought I'd initially bricked it. I was just impatient!
Performs the same as the Sunray. Slightly slower on boot, waits longer on the boot image but I only noticed as I had it running next to the Sunray.
Ordered a couple more from China. Huge improvement over the Zgemma H.2S for not a lot more money (extra £30ish after customs etc).
Going to look into replacing the fan on the next batch, and a cover over the LED (under the front panel) to tone it down (masking tape might work?)
The lack of security protection on these means be careful when flashing. DO NOT rush and don't forget the soft power button to kick start the flashing process.