My family and I love them. We have had 8 since they first came out non-"bad plastic". Have yet to have to replace any parts. My only gripe is the bite valve and tube are difficult to rinse soap out of on occasion. I do not like a dish soap chaser with my water.

Added benefit, the fit in the water bottle holders that are attached to my saddle bag guards on my HD Heritage Softtail Classic. Very nice for quick drinks at redlights and even going down the road.