I came to loathe them. Yes, they were suspenseful in some moments, and the stealth aspect was a good addition, I just didn't like having to keep redoing them. There was always some tear I needed to find last-minute, and on many occasions it cost me. I had to restart so many times on them...well, except for Lanayru's Silent Realm. Somehow I got lucky there. But with Faron and Eldin I grabbed a Light Fruit to illuminate the Tears and dowsed most of the time, hoping to find a beacon, while in the meantime the petals kept falling away, and eventually the Guardians awoke. This tasked me with both evading them and searching desperately for a tear. Only recently did I discover that by going back to the "portal" everything would reset itself.
I believe that I've read someplace about there being one on Skyloft still. My sense of geography is a bit better there, so hopefully I'll be able to pass it with more ease. And on my next playthrough I'll slow down with these so that they'll be more enjoyable.