I've only just finished watching the episode as I don't watch live. My opinions so far...
Jeremy - I kind of agree with Perez here. From the bits we've seen I've thought Jeremy seems a little bit unstable. There was talk prior to the show of Gazza and how most people would worry about his mental state and relationship to alcohol. Well, Jeremy seems to fit that role and, in addition, he's done something that you can't really defend. I think the alcohol played a part but that's no excuse. He should just apologise, say he can't control himself drunk (which is no justification because drunk or not, you are still guilty), and consider himself lucky if nothing further comes from it.
Nadia - Seems fairly reasonable if a little keen to fix everything. May begin to grate.
Ken - He's like a character off the Benny Hill Show. I'd have said he was playing a character but it's more like he's basically being as leery and creepy as he can under a pretence of humour. May be Katie Hopkins secret father as he seems unperturbed when the majority react against him too. Obviously wants off as soon as possible.
Michelle - I still have no idea who she is and what she does but she seems pretty okay to me too.
Calum - I'm not sure about him yet. I think he's shown signs of being a bit insecure and immature with that silly little argument about trainers but that's very little to go on. Will come more to the fore as numbers thin. Still suspect I won't like him.
Cami - I thought I'd hate her but I quite like her so far.
Perez - Most surprising one. Very loud obviously. Very quick to jump into anything. But I actually agree with a lot of what he says which is surprising given his route to fame. I would have expected him to be more unbearable. Quite like him for now. Could easily change though.
Cheggers - Has stayed pretty much neutral throughout and always seems quite cheery. Could probably maintain his cheery disposition in the face of the apocalypse. Typical to form.
Alexander - One of my favourites so far. Speaks sense. Doesn't jump into arguments and seems like a level-headed sort. Kept his head in the argument with Ken and didn't immediately react but came back with a strong but rational argument. I liked that.
Alicia - No real impression so far. Quiet.
Patsy - Ditto.
Katie - I don't really get her at all. She portrays this uber-strong, "I don't care what anyone thinks", kind of reasoning to what she does yet....she doesn't really come across as that kind of person at all. If she got in an argument with any of them I could imagine her being the one stumped for words or fleeing in a flood of tears, rather than her being the strong one, sure of her opinions. Ken actually seems to be that type but she seems to be almost trying to adopt the same rationale as though she thinks that's a strength but not really being that convincing in it. She seems a bit mixed up to me. Or maybe I am, I don't know. I think she could do with introducing some doubt and nuance into her thinking.
Chloe - Seems okay so far. Smarter than the others I've seen from TOWIE.
Kavana - Has been quiet thus far but has came across as very sensible.