I've been running Frogleggs for ages now. No issues with their ability to stop, but there are issues.
1) to remove the wheel you need to squeeze the pads together to release the straddle wire. Only thing is I can't squeeze them enough to loosen the wire?
2) They move in an arc so they point a bit skywards, then curve in and touch the pad.
3) There's zero toe in
4) And they do tend to move about, I have some weirdly worn rims.
What's better, Shimano?