Pros: Low calorie, has vitamins, better than a lot of other beverages.
Cons: Expensive, not as good for you as water, sucralose has ties to liver damage.
Propel Fitness Water is produced by the fine folks who make Gatorade. Not a competitor to energy drinks, it's Gatorade's foray into the bottled water market. The line is easily blurred as Propel is touted as "Fitness Water" - Containing some vitamins and minerals and having very few calories.
Propel currently comes in 500ml or 700ml bottles, and it is also available in powdered form. Single servings up to cases of the stuff can be had if you are looking to order it, though in the store you will must likely encounter six-packs. There are presently 13 flavors, ranging from Kiwi-Strawberry and Lemon to Black Cherry and Grape.
The drinks are generally expensive ($3-$4 for a 6 pack is common), in fact usually more expensive than Gatorade itself. So the questions one has to ask when considering Propel are - How good does it taste, and is it actually good for me?
As far as taste goes, I've not tried all 13 flavors, but I have had about a half dozen of them. I do prefer some to others, Berry probably being my favorite, but I find all the flavors to be pleasant enough. The drink is lightly sweetened, so you don't get bowled over by a sugary taste. Lemon is probably my least favorite.
The health question is generally a bigger one. Most everyone agrees that the drink does have some vitamins, and is low in calories (About 25 per 500ml bottle). However, the vitamins found in the beverage are ones easily found in general - inlcuding C, E, b6 and b12. The water also contains sucralose, a sugar substitute which has some possible connection to liver damage in some. Some people also say the small amount of sodium found in the beverage actually makes people feel more thirsty, as well as retaining some water to make them feel lethargic and bloated. There are also small amounts of sugar and carbs in the beverages.
After doing heavy research, the general consensus is that Propel is too expensive with too little benefit. Most people are much better off drinking plain water - and getting the vitamins from food or multivitamin sources. If you do get a little bored of the taste of regular water, occasional propel is a nice change of pace, but it's nothing that should be consumed regularly or during a workout.
If you're currently addicted to diet sodas or worse beverages, then propel may be a nice step toward going to plain 'ol water. It is however, not a substitue for the original.