This is the first and only straightener I've purchased. I've had it since 2011 and it still works perfectly. Mine has adjustable heat settings, and you can get a nice smooth curl, add volume, or just straighten with this little beast. The plates slightly rock, and are ceramic and rounded. Sometimes, product gunk or fresh hair dye will stain them but a few passes with a clothes dryer fabric softener sheet and it cleans it right up. I loved this thing so much I got my mother one for her birthday since she was still using a traditional curling iron from the early 90s to straighten her hair.... yikes. My hair is fairly limp and lifeless and thin; my mother's is thick and curly. This product works well for both of us.