D2 boost controller quality.

Hey I found what appears to be a well priced ebc, Has anyone had any interactions with this one? http://www.ebay.ca/itm/D2power-full-electronic-boost-controller-USA-SPL-/230549840580?pt=Motors_Car_Truck_Parts_Accessories&hash=item35add762c4#ht_5332wt_952 it looks pretty good to me but id like to get some opinions.
Thanks