One thing about Batiks depending on the manufacturer is that they seem thicker than regular quilting fabric. Because they are "hand" painted, when you start stacking them to piece, you need a nice sharp needle to get through them. I'm doing a king size quilt in all batiks, pieced up the ying yang and boy it's a challenge. If you have any really dark colors, I'd wash them first, they might bleed. I have a really dark navy blue batik I am using and was told when I bought it to make sure and wash it first.
Good luck, I didn't like Batik's at first, now I have been collecting half yard pieces of all different patterns and colors, for a really cool scrappy star quilt.