Boston Mike

Wondering if anyone in here is using one of these? My car is gonna stay street as it's my DD, so I'll be keeping my touchscreen NAV. This seems like a pretty interesting alternative to a-pillar or dash gauges, especially since you can add in a component to wire in up to 5 sensors that aren't part of the OBD port. Anyone using it that can give some intel?

http://magden-auto.com/