does that router have a user interface? if so, how easy is it to access?
Yes it has the GUI you would expect from a bitmain product. It feels like any other product they have.
The main differences I can think of with CrazyGuy's versiion vs original is the zombie fix, easy gui freq on internal chip, and being able to point internal chip to pool of your choice through gui.
But yes very much GUI and easy.