MOEN Buffalo, GT-2 or TRI-AC?

[symym]

Hi people, I just saw this pedal that Guitar 77 is bringing in called the MOEN Buffalo.
http://www.moenpedals.com/effects/mo-ba_buffalo.html

Was wondering if anyone tried this pedal?

I was also thinking, placing this pedal as a preamp on my rig, would you guys choose the MOEN Buffalo, the Samsamp GT-2 or the Tri-AC?

Thanks