Razer Wolverine Ultimate Xbox Controller [PC]

Afternoon everyone. I read some reviews and ended up deciding to purchase a Wolverine Ultimate controller for PC games. Mainly, because it was my understanding that there are six remappable buttons. All I am looking for is a way to push-to-talk in Discord using one of the back buttons, but it appears you can only remap the typical controller buttons, which feels really limited... especially after spending $150. I'm about to return the controller and go back to using my old Xbox 360 controller, but I wanted to ask some questions. First, how do people feel the quality of this controller is and does it last? I use Razer products for a lot of my PC gaming, including four Tartarus v2 that I went through in less than a year because the joystick kept snapping off when using the "forward" button. The mice tend to last a year or two, depending on how much I play. Second, does anyone know a way to remap this six unique keys to something on a keyboard, like alt, ctrl, etc? Thanks in advance for the help.