I got the [Pegasus] Pocket Powerbox (PPB), because I wanted to get rid of the cables and power adapters of my setup because it was a nightmare for me when I was setting up the equipment to connect every single device with each power adapter.
What I did when I got the PPB was to mount it on my telescope and connect all the devices to it, so now the only thing I have to do is to plug just one power adapter to the PPB and that's all!
Another great thing about the cables is that the PPB has dew heater plug so you don't need an external device, which means fewer cables.
The PPB also provides a Humidity/Temperature sensor which is really helpful for adjusting the dew heater temperature automatically! So even if the humidity changes you don't have to wake up to adjust the temperature again, as the PPB will set it for you (of course you can adjust the dew heaters manually, through the software)!
Regarding the DC outputs, the PPB has a nice feature where you can switch (through the software) the DC outputs on/off to have a better control of the voltage for remote setups!
In conclusion, I think that the PPB is a very helpful plug & play device which does save you time and space as it's designed to be very compact and lightweight. In my opinion, it's ideal for compact setups (as it has an 8V DSLR output in case you have a DSLR) but it can work perfectly with bigger setups as well!