It's easy, and it's very rewarding. Good quality fleece will last a long time and is a great investment of your sewing time and dollar.
Fleece is incredibly popular for outerwear, performance wear and comfort wear right now.
Not all fleeces are the same. Polyester fleeces were first developed by Malden Mills in conjuction with Patagonia. If you are not sure what high quality fleece feels like, take a field trip to your local outdoors shop. They are soft,silky, and plush, and the light does not pass through the fabric. Compare that quality and feel to what your local fabric store has.