As a cloth diaper user for nearly 7 years, I have tried a variety of diapers and covers on my children. Both of them started in prefolds and covers, and though I tried many different varieties of covers, I would always come back to our Bummis Super Whisper Wraps. The design is simple, and easy to use, with an aplix closure. The aplix (which is a hook and loop material, similar to Velcro) makes the covers highly adjustable, which is a great feature as babies tend to beef up and slim down as they go through growth spurts.
The covers are easy to care for...I just wash and dry them with my other cloth diaper laundry. It's easy to hand wash one too if I run short, and they air dry quickly if you don't want to use the dryer. I rarely had any leaks with these covers, due in part to a good fit and the snug aplix closure.
The only thing I wish I could change about the Bummis Super Whisper Wraps is the assortment of prints. I would love to see a more modern print available. The doll, frog, jungle, and baby prints are cute, but I would love to see a print that isn't baby-themed.