Boss Katana Go Headphone Amp

Very good to practice with not the longest battery life but you can use it if it's plugged in if you don't mind the static noise.

Comparing it to Fractal or QC does not make sense - but what else do you need in a portable battery powered unit?
Not overcomplicated, a little plastic-fantastic feel, but overall a great little headphone amp.

The weakest part is the mobile app - I do not rely on it too much, but it seems to be buggy, looses presets and content and looks dated. Fortunately the hardware itself can be operated without the app constantly connected

To plug in your guitar while on the go, this is probably the best currently out there. However, I wanted to put it at the end of my chain and eventually opted for a tonex one for practical reasons.