Prepare to be amazed, then, because you're looking at one.
The current costume utterly fails to be catlike or sexy, nor does it have any continuity of style with the character's history of looks. It also fails for completely hiding her hair, which is an utter turnoff in any female costume. Really, who finds bald women attractive? It becomes instead disturbing and wrong. I don't mind if the hair is a wig built into the mask, but a feminine form without hair is just creepy.
Then again, I think the costume's lack of femininity or attractiveness is what some people find good about it. I won't get into what I feel are the wrongs of sex-negative feminism, or of the double standard that ignores or promotes hyper-masculinity for males while promoting androgynous, neutered looks for female characters, instead I will just say I take issue with that position.
More to the point, however, this is Catwoman we're talking about. She's the archetypical Femme Fatale in all of comics history, the trope maker for the sexy catsuit look. She's supposed to be sexy, seductive, slinky, and sensual --it's what she does. The "androgynous practical" look goes against her entire established character. She should never have short hair or short nails, should never de-emphasize her femininity. She is the closest human thing to the Goddess Bast, and her sultry, catlike sexuality is at the very core of her character. In fact, it's one of her weapons. One of her core traits is that she holds most men in contempt, and uses her allure against them, considering them pathetic when they fall for it. These are aspects that have been with the character since her inception.
And I'll even admit, the new look may work for Holly. She's a different character, and a different kind of Catwoman. But not Selina Kyle. If she doesn't drip pure sexuality in everything she does, she's not Selina. It's her style, it's her theme. It's how she operates.
To ignore that is to ignore everything that makes her Catwoman.