Jake picked it up really well but, at five months, still has the odd accident. Mostly it's when he's left for longer as he's a stubborn little cocker and if he doesn't want to go out when I take him before going to work, then he just won't go. Other than that he almost always lets me know when he wants to go.
Having said that, just a couple of weeks ago he pee'd right in the middle of my hall rug. I wouldn't care but all the doors were open and he could easily have gone out!
All in all I'm very happy with Jake's housetraining, and you'll get there too. I really wouldn't be worried.