From a lot of different people I'd talked with prior to the shows release, I'd heard mostly how sugary sweet it is and how you've got to be able to have a high level of tolerance for that kind of thing. Not counting the hack job that is the dubbed Cardcaptors, I hadn't seen all that many really sweet kids shows over the years.
And make no doubt about it, it's definitely a show aimed at young girls. But don't see that and dismiss it. If you've been watching anime for any amount of time, you should know better by now. While the show does indeed have many sweet moments, it's also very well written, beautifully animated and simply put, wonderfully done.