I've had it three months. 2 voltage: 9 to 12V. It is compact and solid in appearance. It is also quite heavy, which suggests that there are several transformers (unopened - I do not want to lose the benefit of the guarantee - I would say at least one for 9v and the 12v). Comes with an extensive connection (including bonds reversed polarity)
It is integrated into a pedalboard and feeds 3 effects DIY (Orange Squeezer, Trebleboost Brian May, Reverb Guitar Gadgets P75) and a Crybaby moddée. A priori, no noise nuisance residue (cons, I did not realize measures output).
Frankly, for the price, you do not risk much ... Besides being pleasantly surprised. In fact ... I had not tried others before, so little point of reference.