Instruct: Classify a review into positive or negative sentiment.
Query: A disappointing update

I loved the product this replaced but when the attachment lock broke on the old model I needed to buy the new one. This is a complete disappointment. The handle is much larger and harder to hold. The power control button is very difficult to control with just my thumb and the attachments get so hot so quickly, it is impossible to touch them. Plus, the air coming out of the attachments is so hot, you can't hold it close to your scalp for very long so that the curling iron effect is lost.I'd love to see Revlon bring back the old design. It was perfect and needed no tweaking.