Pros: Easy to use and carry - saves $$$
Cons: ...uhm... can't think of any.
Have been using the model with the sport top - has an integrated handle in the top as well. LOVE this "canteen" vs. a couple others I have tried. The sport top seems rugged enough to last a good long time as well. Keeps me drinking more water instead of other "stuff", and keeps me away from using plastic bottles or even plastic re-fillable types. Highly recommend. Even tho any of these bottles - from most brands as well - cost from $14 to $20, they pay for themselves in weeks if you were a bottled water drinker... assuming u bought in bulk. If you buy by vending or fast-food water bottles, pays for itself in like 5 days... LOL!