IMHO, Bell has looked after our 407's royally, could be that we're the largest Canadian operator of the type, and/or run a complete Bell fleet (206BIII, L3, 407, 205-17, 212HP).
I'm flying a ship with a new utility Interior that Bell installed for "test" purposes, quite a bit lighter than the original one, and tough.
If we ever encounter problems, the local Bell service tech is here in a flash.
Never ever saw an EC service tech in person? ...or do they even exist?
Regarding operating the 407, I've never flown any type that was so agile, responsive, reliable, and most of all just plain old FUN !