I second David's post. I haven't installed the through-hulls yet and will do that when the boat is hauled at the end of the season. The integrated network is really good. I've got my GPS networked with the NMEA interface, the wind transmitter and racemaster compass. Everything is very accurate and worked right out of the box. I "auto-networked" everything on my workbench before taking them to the boat. No problems getting them to talk and bring up whatever info I want displayed. I've only had them a month so can't speak to the reliability, but after researching them, you'll see others have commented favorably on the reliability.
Bill