The best part about these diapers is that they grow with your baby, and you aren't buying a new size diaper as he or she grows. A baby could wear the same diaper as a newborn until potty training. Unlike The adjustable elastic stretches with the baby and seems comfortable. Unlike bum genius diapers, it doesn't bunch up around the baby. There are notches in the elastic, and makes for a easy fit.
The snaps are easier to use, because you aren't guessing if the diaper is too tight or loose, you can snap the diaper to the same place every time.
Pocket diapers are easier to clean than traditional all in ones since you can separate that inner part from that outer part. Drying is faster too, and you can add a doubler at night time.
We hear that the one size leak occasionally for some, for our review they seemed to work great. For parents that have leaks, they should try but the "perfect size" diaper which come in two sizes, a small and a medium. For parents that have leak issues, they have a great warranty that allows parents to return the one size for the "perfect size" should leaks occur. Fuzzibunz has wonderful customer service.
The way you washing correctly is important to making them last forever. Use a non-toxic biodegradable soap and hang dry or machine wash at the lowest setting and never, never use bleach.
We wish that they came in more colors and patterns, but then again functionally is more important. The colors and patterns are just gravy.

The Bottom line:
If you have a budget big enough, and are cloth diapering primary to go green, these diapers take the cake. They are the easiest to use and to wash, however, the cost savings just aren't there. If you want to put back a little back into your wallet while being green, we recommend using a pre-fold diaper with a diaper cover. Fuzzibunz are worth the extra price for the convenience, we were only disappointed by the choice of colors and patterns.