Truetone 1 Spot 9V/DC

Tried to use with midi keyboard (supply 9-12V). One time couldn't start, maybe due to low V in the system, but otherwise works.

Nice build and simple....Although, for my own personal view, cable is a bit stiff to fold accordingly to your cabling tray neatness.
I am happy with this purchase due to its price/quality.

Built like a tank with a very long and well made cable.
Unfortunately it was creating too much noise in my home setup.
No issues occured when I was in my rehearsal space tho.

has enough power for powering up more than one pedal at the same time

If you are unwilling to pay 150+ EUR for a proper isolated power suply such as Vodoo Lab ar Strymon, this might your perfect choice. This little guy was feeding my pedalboard of 7 pedals without any problems.
Depending on the venue, there was sometimes some background noise (strat single coils don't help here as well), but it was bearable, especially having in mind the price of this supply.

Already the second 1spot i get for my rig, and still very impressed with the quality and lack of noise, even when plenty of pedals are connected with a daisy chain.

I heard a lot of possitive comments about this power supply on the net and I thought I should check it out. No humming, a long power cord and all in a small package. Very happy with this. Only negative is that the power cord could have been a bit less stiffer.