IK Multimedia ToneX Pedal
Positive point:
[a] Very nice, amp-like sounds.
[b] Simple use interface.
[c] Light.
[d] Standard power supply requirements.
Negative points:
[a] Noisy footswitches (they are not super-noisy but they are not silent either). The ToneX One has a silent footswitch.
[b] Lack of TRS balanced outputs.
[c] It is not possible to disable the bypass (if one hits the current preset/fooswitch the unit goes in bypass).
[d] It is not possible to send external audio in via the USB port and listen to the processed guitar at the same time. This makes it impossible to practice with headphones and external audio.
[e] The PC software could be more intuitive and crucially, better explained in the documentation.