I've been using this for a couple weeks now and I really like it, some things in tf2 feel more natural with a bit of accel - as someone who doesn't play as much as I used to I feel like it almost corrects for me not being super warmed up, and when I do get warmed up the accel doesn't feel out of place at all. It's definitely worth trying and with settings you can configure very specific ways for the driver to work. Really good shit!
Only question I have is how do I get this to start minimised? It launches on startup as I'd like but I'd rather not have to minimize the GUI everytime I boot my PC.