Hard to say, as we've only heard bits atm. If Natalie goes all needy and on the weight thang that could get annoying, but am reserving judgment...after all, Letitia was charming.
Sometimes it's the most unlikely people you really get to like and others that others like but really grate on you for no particular reason.
The only person on who has ever made me want to put a fist through the screen and strangle very hard is Dom. So far I've seen no signs thankfully that the Groper is in this series in another incarnation.