I have had an IRH for about a year and a half now I guess. I love it, first helmet I've owned that didn't make me look like a total bobble-head. I had a Troxel before that and hated it, it never fit quite right. The helmet you get will depend on the shape of your head though too. I went to the tack store after doing internet research set on getting a Charles Owen but I tried them on and it just didn't fit the shape of my head. Meanwhile my sister and our instructor love their CO's to death. For local showing, my black IRH, cleaned up, does just fine without any kind of cover.
ETA: if I didn't show, I would totally be into a Tipperary Sportage...they're just so cool looking, and I love all the vents.