I pulled the trigger on the Vectra M1 a week ago- i cant believe how quiet it is! My impressions thus far are all positive!! Its also great to have it connect to reeflink!
Im sure you could make it work with vinyl, however i opted to use 3/4 pvc. My sump has a lip on it to help prevent any splash over and even when main pump is off, the water level never gets over half full in sump.