I did not for a long time, but except for the reliability, reviews for this kind of product is quick!
First impression: it's heavy! it seems sturdy, well built.
Features: Connect to the power cable (here it is not a transformer to connect as some competing models, the better), a switch to switch to European or American voltage. 4 outputs (RCA type), 2 in my 9v 250, 100 and 2 independently switchable my 9 or 12 volts.
In the box there are a lot of cables of different lengths and different formats. (In addition to Cioks, there are plenty that you can buy separately, including a daisy-chain to add more outputs).
Note that my 250 is a big amperage is more demanding than the pedals are rare (with some great digital productions). So, it is even possible to power Strymon pedals. Cool !!
Once installed and wired, the food is very good at his job and without background noise. Perfect!
The advantage of this power is its size: it is small and flat enough. Where it gets really interesting is that it is calibrated size Pedaltrain Nano or Mini. After drilling two small holes in the tray of pedalboards, it screws underneath and becomes invisible and does not take place!
In short, if the features are right for you, you will not have unpleasant surprises. The advantage of the installation possible under the pre-mentioned pedalboards is the big plus of this small supply.