I'm using the shift light/lamp thou, and is good, user-friendly, accurate...using it 3 months ago til now..
i believe i will try their gauge as well, but not for now cause i got other upgrade to do first.
quality wise, i believe it has, cause is an Australia product, and it is just new in malaysia that's why everyone afraid of it..
Price wise, is reasonable
Design wise, is cool.
maybe u can try to get 1 first, and check it out since it cost around 300-400 only.