I love my Triumph. My 3 year old has been using it since she was 6 months, but my 7 year old can also sit in it (up to 55 lbs). I prefer the Triumph over the Volo because it is a more supportive back (volo is slingback) and it adjust to different heights so we can lay down a sleeping child.
I purchased it because I needed light weight for my back and umbrella for my car. I still LOVE it. It has a carrying strap for "running through the rain", it has a plastic rain guard that I use more for wind (touring the Smithsonian in March she stayed warm).
Spins on a dime, 5 pt harness, nice for tall parents (5'10" and 6'), storage underneath...
Good luck!