With over 2,000 pieces of feedback and a near perfect rating I would say this is a good hair straightener.
Right now on Amazon you can get the HSI The Styler Ceramic Tourmaline Ionic Flat Iron Hair Straightener, 1 inch  for $39.99 shipped.
After years of struggling with bad straightener my hairdresser looked at me and said “I know you are cheap but you need a GOOD ceramic straightener if you want it to work.” I dropped $80 on a straightener and it turned out she was right.
Since this one is generally around $70 on other sites I would say this is a good deal.
As always be sure to double check the price before buy- Amazon prices change quickly!