Yes, it made me faster. Not only is it easier to get "into the flow/zone" with it because the immersion is so much better, but I also ride on the brakes less as I'm not LFB'ing anymore.
I guess I did this too much previously, taking away front end grip in the RWD cars due to excessive braking while steering, and making FWD cars oversteer to much by artificially moving the brake balance rear due to simultaneous throttle + brake. Overall my consistency has surprisingly become better, at least in the "getting corner entries right" consistency. I still have a few mis-shifts here and there caused by not pressing the clutch deep enough.
Though so far my experience comes only from the rather low powered and non downforce/slick cars. I still largely ignore heel-toeing and the added roughness from that could have a worse effect on the higher powered cars - not that I care too much about them anyway. Racing is soo much better in the lower classes