I was going to say the same as mike, check the fluid level, if low it normally means your pads are getting low, if you top it up to much its likely to overflow on the next pad change
I've now had 3sets on my lmgt4s but the falkens are what you pay for, there top end budgets, so if you want average grip & additional road noise go for the falkens but if you have a bit of spare cash go for something a bit better & asemetric