Two features of the Podium Ice bottle stand out. The first is the locking spout which is extremely easy to use to get hydrated while maintaining control of the bike. The second is, with ice added to whatever liquid you are drinking, the liquid stays cold longer to keep you hydrated over long rides.
This bottle has solved my problem of riding 7 hours in 100 degree plus weather conditions. I freeze the bottle the night before and it takes about 3 to 4 hours before it defrosts enough to drink from it. So I am treated to cold water in the midst of the most torrid and remote riding conditions. Truly a lifesaver.
The Chill and the Ice bottles look the same (except for the price tag, of course). So I was very skeptical.
Very unscientific, I know, but I took one Podium Ice bottle and one Podium Chill bottle on a bike ride. After 3 hours the Chill bottle's ice had all melted, the Ice bottle's ice was still healthily rattling around in the bottle. Four times longer than a regular bottle? - perhaps, but my initial experience shows that the Ice bottle lasted about twice as long as a Chill bottle. Still not sure if the price is fully justified, but it does seem to work pretty well.