Now, I've seen through this forum that quite a few people have issues with Brant. However, how common are the issues that are happening with Brant that warrant a rip out of the system and installing Autowatch (or other security systems)? As in what is the ratio of it happening to WRX owners (eg. 50%, 70% etc )? And at what km's do I start experiencing issues with Brant generally?

I'm planning on ripping Brant out ASAP as I don't want to get stuck in the middle of no where or on the way to work rather than taking the chance and waiting for it to break down on me.