Green Dolphin Country (1944) is the famous one in the U.S. and I did enjoy it, although its film incarnation as Green Dolphin Street (1947) is flawed in just about every way possible for a Hollywood gloss. (But it contains Van Heflin as my favorite character from the novel, so of course I watched it.) The only one I can remember actively disliking is The Heart of the Matter (1953), which goes fine right until the ending and then I want to drop-kick it out a window. The White Witch (1958) disappointed me as a young reader by containing more romance than magic.

Oh, Green Dolphin Country was the one I had for ages and didn't read; the other was one I had for less time and didn't read (for the same reason, though.) I didn't know any of them had been filmed.

The Heart of the Matter (1953), which goes fine right until the ending and then I want to drop-kick it out a window.

I can't remember why now, but I know that I agreed with this, enough that I couldn't, in the end, even keep The Bird in the Tree, which I had loved until that one spoiled things.

The White Witch (1958) disappointed me as a young reader by containing more romance than magic.

I don't recognise that title at all, but I definitely had the same reaction to one of them! Or, indeed, to any book that had titles suggesting magic and then didn't deliver. False advertising and worse! XD