Great review!
I've been using one of these for testing over the past month or so. It works great and it looks great!
I've had no issues with it other than 1 random shutdown during a game of PUBG (luckily I was already dead and spectating), but I think this was caused by the HDPLEX 300W AC-DC unit I was using to power it. I've since swapped to the DELL 330W external brick and its been fine since.
The 300W AC-DC runs very hot, even when the system is idle it feels very hot to the touch, after an hour of gaming the unit feels burning hot. I've not measured it but I think my system is probably drawing in the region of 200w - 250w while gaming.
I think the AC-DC unit needs good airflow over it to keep heat levels acceptable, or perhaps it is designed to work best when mounted to the large heat sinks of the HDPLEX cases to help dissipate its heat. The Dell 330W brick feels comparatively much cooler to the touch, but it is larger.
With my "seal of approval" which basically means I don't have to worry about overpromising then doing alot of technical support emails, the HDPLEX 300 AC-DC is suitable for a 200w system without active cooling with 100% stability. This means a 92w CPU, and a 1060 with a little overhead.
I think you could push a 1070 off it if you could do a little tweaking with a 65w or lower CPU.
The 1080 can be made to run off it with tuning, but in some games, like PUBG, SoM, MWO, WOT, MLL it will have random resets and get burning hot.
With active cooling I was able to run a 7700K and a 1080 mini off the AC-DC 300 with no tuning in PUBG indefinitely, but I would get infrequent resets during the drop phase. I think with a little tuning you could get further with active cooling.
I still recommend the Dell 330 in all instances until I can find the best use case for the 300 AC-DC form factor.
The 160 AC DC unit is brilliant and can be fit in a S4 MINI and power a nice CPU + a 1050ti internally, which makes for a fun system. I have been testing that out for the past week as I want to support internal connectors and I'm impressed with how powerful this GPU actually is. I have pubg running above 70FPS at 2560x1440. No eyecandy and screen scaling is on, but most people lower that stuff anyways to be competitive as possible. Neat.