Regards why not many have used Forge for a remap.. in my opinion i would say this would be due to them being quite late to the party and many people will use past performance and feedback from others to
help select which remap to go for. - something that is very lacking with Forge remaps.
Its a kind of self forfilling circle, if there are lots of lots of threads for other remapers with people saying how great the car feels after using their software then people will go with that.
There are not many people willing to be the first or go against the flow.
However Forge are a good company and their customer service is usually spot on, im 99% sure they offer a money back guarantee on their maps, (ie they will remove it and refund if you are not happy).
If i had a car that needed mapping i would be seriously considering using Forge.
But for now there is a serious lack of feedback and rolling road results for Forge, as well as long term feedback.
Remapping is one of the first things people do to their cars and if you were newish to SCN and went looking for info on remaps you wont find much info for Forge and so im sure this is why they dont appear to have taken off like many would expect. (at least on SCN)