Sweet, and very well acted. This is much less wild and outrageous than earlier Almodovar, but compensates by having more real emotion. Still, this has two of his usual key elements -- dramatic use of intense color, and a melodramatic, almost soapy, story. It's clear he loves melodrama at the same time he gently pokes fun at it.
But in 'Flower of My Secret' the soap has more underpinnings in humanity, with subtler behavior and humor. Technically he gets even better with this film. It's beautiful, shot in a more subdued style than his earlier work. Not a great movie, but a good, entertaining, human one that paves the way to his later fully 'real' and moving masterpieces like 'Talk to Her'. Lovely performances.
There seem to be two distinct groups among Almodovar fans. Those who prefer his earlier, wilder, more genre busting work, and those who prefer his more recent, subtler films. I'm in the second group, but can completely understand those who feel differently. And where you fall on that scale is likely to have a big impact on your reaction to this film.