Westfield Gas and Electric has been Westfield's municipal power company for as long as I can remember, and I've heard few complaints about their management. This is not their first time providing Internet service, as they used to run a dialup ISP back in the day.
The concern about future upgrades is kind of ridiculous in context - the Verizon infrastructure here is still at the bare minimum, with no hope of ever being upgraded. I have no doubt that when the gigabit infrastructure is finally looking outdated and slow, Verizon will be sitting there offering the same "high speed" 3Mbit. That is, if they haven't convinced the feds to allow them to sell the copper for scrap.
The service itself is a lone single mode fiber, with a GPON terminal. Installation planning was done by a WG&E employee who even showed up in a bucket truck. Installation was in two parts - one entire contractor to direct bury a flexible conduit with the length of fiber, and a second contractor to complete installation on both sides of the burial. My speed tests show basically full gigabit up/down.
(Also, comments by new accounts start off dead now?! I made a throwaway because I'd rather not state my explicit location as part of my main profile)