I am 5'11 and the headrest hits my neck not my head. The massage motors are so loud you will need earplugs but it does feel good.
The chair lacks lumbar support adjustment even though it does have a vey stiff area as the "lumbar support". There is no adjustment capability in leaning making it harder or easier and it is very easy so be careful or you will flip out of the chair your first few times.
There is no rocking type nature.
And lastly you have to keep it plugged in. I guess that's not a big surprise but I was hoping for rechargeable battery pack or something like that so you don't have to stay near a wall outlet and run the risk of yanking plug out of the socket and tangling the wire with the wheels.
I'd pick something else with adjustable lumbar and give up the massage functionality. Do keep the foot rest as it is a great feature as is the reclining. the arms are nice the way they move with the reclining motion