I don't have any experience with it, but what they say is true.

The pump has a lot of intelligent circuitry built into it - I would be concerned about how all that high end electronics will hold up over time as the pump ages, is exposed to weather, etc.

The other thing to consider is - has your builder installed a number of these pumps? You don't want to be "serial number 1". Get some references of customers for whom the builder has installed that pump and see what they say about it.