Not a buy for the long haul :(
I have one of these bottles. It is a good concept, and does clean up well. However, it did just not stand up to actual repeated use. The bottle eventually cracked laterally and is no longer useable.
This bottle was used for approximately ten months. OK durability I suppose, but my Insulated Polar Bottles have lasted for years......I actually tend to misplace them long before they wear out.
In my opinion this is not a buy worth making for the long haul!