Was so excited to receive this chair.  Delivery was faster then expected.  Having said that, everything went downhill from there.  The first chair I received, I was unable to put the height in a locked position, it just keep sliding all the way down. Ok a fluke, I'm thinking.  I returned the chair and received a replacement.  The arms are not secure and wiggle as if they are about to fall off despite being securely tightened. The 'massage' is merely a vibration with different vibrating patterns.  The "heat" is just a slight warmth--my car seats are warmer.  Finally, the chair is uncomfortable.  I am truly sorry I purchased this chair but not willing to go thru the aggrevation of dismantling and repacking and returning for a second time.  Needless to say, I would not recommend this chair.