Cons: - uses the old 2-wire fat body pressure sensors which can make installation a bit of a problem in tight spaces. - the green needle doesn't really illuminate green, more of a yellowish-green, most likely due to the colour temp of the LED they opted to use, more of a 3800K temp instead of a 5000K temp. Pros: - literally one of the few digital dual-needle air pressure gauges and the only in this price range. - works and is really simple to install. - tint lens and low backlight option = very little blinding at night.