I have a Focusrite Scarlett Solo and as Sonic says they are excellent, easy to use, nice gentle preamps and when you register your unit you'll get Red Comp and Red EQ thrown in.

The Solo also does a full 48V phantom power for my condenser mics, the Behringer Xenyx despite having phantom power hasn't got the grunt to drive them so I need an inline injector for the power.

A repair of the Line 6 might be cheaper but it's a bit of a limitation if you want to do more than guitars ( I have a Fender Mustang for that purpose )