Wolf is an Australian company, thus it is not used in Japan where there are an abundance of other local products to choose from. Just because one tuning company decides to use the FCon-V doesn't make a suitable argument. You need to weigh up the features, price, add on capability, available tuners, install requirements, optional handest/screen etc. to get a good understanding of what you should choose. Each person is very different in their goals so there is no one single answer to what ECU that person should run.