It's totally random, some days it works fine other days not so much. One time i had to delete the phone from the mft and delete sync from the phone and do a fresh pairing to get it to work. Anyone else having similar issues with samsung and kitkat 4.42?

 

I've had to do a fresh pairing, like you stated, a couple of times. Mostly due to the text message feature that would stop working randomly. Otherwise, I really don't have any complaints.