«  Efficient and cheap! it's .. uh no ... »

I put 8 which is very good.

Very good? :

saw the price: 38th!
Given the outputs: 8 outputs and 2 9v 12v
Given the range of connection that comes with.
(Cables for power supply, extension, tip mini jack (1 per cons), reversing polarity ect ..)
Given the strength of something
Given the service

I feed my effects in front of the amp with. No particular buzz, no problem.

Negative points:

Common mass. The outputs are not isolated from each other. Hence the interest in me having to feed my effects facade. I have not tried but facade + loop: risk of hum ... damage.

500mA max for 9v only. A bit short. Well it works eh!
But let's say that one spot, certainly not the same kind, delivers 1.7 Amp! (The y 'what to do! (Chipotons a little)

Very explicit instructions. Food is still important and when we see that the forum itself, some have come to cut their cables! While inverters are provided!

Too bad this is not specified in it .. It would have avoided tinkering ...
So ultimately, an aesthetic product.
(On the beautiful blue that recall the morning was not .. er .. I'm rambling)

Convenient, cheap, effective. Relatively complete.
(Be careful though if you need food and facade and loop.)