I'm not really fond of antiheroes. If they're a$$holes to anybody, eventually they'll be an a$$hole to you. I did read one of those series, purely because a friend sent me the first three books when I was homebound post-surgery years ago. I slogged my way through those three, waiting for either the heroine or the antihero to get a clue. Lots of sex happened, but no clues were found. People said it got better in the next book. According to a different friend, they had sex in the fourth book, but the guy was still an a$$hole. Frankly there was only one character in the whole series who was at all relatable, and that one was literally a minor character, as in a teenager.
Characters IA describes as alpha holes, like Kate and Curran, are different because they at least have codes of honor. I can overlook quite a bit from someone who at least tries to do the right thing. If their only purpose in the book is to raise the general level of hawtness, I'm out.