I have had the 2013 wrx since late September and the Bluetooth has not given me any issues even with my nameless performance axle back with muffler delete. (Even with the road noise and drone on the freeway). I also use my car for work as a service car. I am constantly using the bt feature as I am on call from location to location and it works great. However I havnt had any previous experience with any other cars so I have no baseline of comparison. Instead of dialing by numbers, I have freq used numbers stored and tagged by an Id that can verbally be spoken. Like, "call mom".
To the op, I havn't experienced my car talk to me yet.