As for my thoughts, it is a good trade. First, we gave up very little and still got a second round pick in return.
Second, Charde fills a position of need. She is best as a starter on a bad team or a bench player on a good one. Her offensive skillset is such that she will provide much needed scoring in the paint from the bench, while allowing Bonner to roam the perimeter.
Plus, with Charde's versatility (worked on her outside shot), she and Bonner can invert positions when need be to take advantage of matchups.
Taylor, as of now, may be playing in Phoenix this year. So this post presupposes Taylor playing and Sanford starting at center.
If Taylor is not playing, I would not mind seeing a lineup of Taurasi/Bonner/Houston/Dupree on the floor. Small in the post, big on the wing. Lots of shooting range and versatility there. But it will require great chemistry and rebounding to overcome opposing teams' post players.