I really want to try one of the rarely used legacies, but I'm afraid of just ruining my character. Can you comment on any of these legacies as to whether or not they're much better than they appear, or if they've been tweaked in recent times?

Renewal of the Spring
Vanguards Desire
Mercy of the Typhoon
Forsaken Thoughts
Fluid Deceptions
Space Between Heartbeats

I've searched many characters that had each of these, but none really raved about how great they were.

Thanks for any input.