After a week of testing it I am completely satisfied with the Nux Solid Studio. I am using it to practice at home without an amp and as an amp substitute before the signal goes into the PA for live events.
The product is easy to use, navigating through the features doesn't require much research. With the compact form Factor it fits perfectly onto a pedalboard and can be powered by 500mAh 9v without requiring to buy the official Power Supply.
The only downside was the missing information about the different options for custom presets are. This had to be done via trial and error, which is easily possible using the software, therefore not being much of an issue.