I am also running Falken 452's all round. Started off with the fronts due to a screw in one of the Bridgestone RFT's. Now have replaced the back ones also due to bald inside edge on Bridgestone RFT's.
I really like the Falkens and have no problems with them. The fronts seem to be wearing very evenly but its too soon to tell with the rears - if the inside edge is gonna dissapear quickly or not.
As for grip - I find them better than the RFT's and comfort is defo better.
I would not be in tune enough with the car to tell if they are better handling-wise. I drive as hard as I can sometimes and they seem to hold me ok
