Before this all I had really done was experiment a little with some rapid fire mods. Never anything permanent though.
I don't find the lag to be all that bad. It is actually quite responsive but the mouse still doesn't feel quite like a PC game. Now I realize feeling like a PC game is near impossible because of the way the games are programmed.
The all the keyboard controls feel great except for the few odd moments of confusion when going through the menus(suddenly you are pressing the space bar for accept and a random key like R for back lol).
The right analog(mouse) I would describe as moving the analog stick with your entire hand but it isn't too bad. Seems to work better with higher sensitivity levels than the analogs.
The biggest issue to me is rapidly left clicking can get a little bit unresponsive. After typing that I started checking some of the timers and realized the timer that writes the mouse click (keyserialwrite) was set to 100ms. Changed it to 1ms and now it shoots as fast as I can click.