This really gets 3 1/2 stars...yes if you want water with flavor instead of drinking highl sugar beverages this is a plus. My friend says there is an after-taste in the cartridges, I do not taste it. The flavor will run out faster the higher the setting, and the lower setting you taste more of the sweetner than the flavor. I am interested in trying some of the flavors on the website. I will not give up on this product because I think it is a kool idea.

Not bad, but had issues with air flow. The small stopper fell out almost immediately into the water reservoir. Now the water leaks out the air intake.

Bottle didn't work very well, the rubber gasket needed to be altered in order to drink properly. There was no air being let in. So I had to poke a hole in it or open the lid after each drink. Now it's very loud and you have to really work at sucking the liquid through the mouthpiece. Not very happy with this purchase.

For some reason the bottle builds up a lot of pressure and makes it impossible to get the drink out. I have had a Cirkul before purchased from the actual website and did not have this problem.

This review is product related and has nothing to do with Sams Club. Most of the flavors left a horrible taste in your mouth regardless of what level i put the cylinder on. Then their is the design of the tip to suck from. There is no sip, an obnoxious sucking sound. Horrible design. I will continue to buy packets if i want a flavored water.

I had a friend or two that said they really enjoyed this and I finally had saw it in person but even on the lowest setting for flavor it still tastes really strong like someone dumped the powder in your mouth and a sour head. Oh well. Maybe I got an off one :(

I wanted to love this. Unfortunately, the cartridges did not want to release the flavor as they should. I was constantly trying to trouble shoot why the flavoring wasn’t flavoring. You also had to sip so forcefully that the bottle would make chugging water sounds and you would have to unscrew the top to release the pressure.

I personally didn't enjoy it because I kept having to open it due to sucking on it and it stopping the flow of watee.

The idea is a good one - have cartridges of flavor you easily sip through to change up the taste of your water. But the implementation of the idea didn't work for me, and I returned it. The dial that alters intensity of flavor almost immediately kept producing high intensity flavor even when set at low numbers.

Very disappointed! The flavored cartridge ran out, not even in one use in one day; Didn’t even refill it that’s the crazy part! We were sitting at home, drinking it. The level was on four. The night was not over and it was all gone. I couldn’t believe it! It’s too expensive for the flavor to be running out with only one container of water. I am returning it.