I have seen a bunch of negative old posts on company Electromaax. Despite that, due to their close proximity to me, I decided to buy Alternator
and serpentine kit for my Westerbeke
42b from them.
It required some tweaking ( which is main reason I went with them to avoid cross border back and forth) but I have found the company excellent to work
with, very obliging, and their prices were excellent. Early days obviously but so far so good.