HI Dtail.
I spent about $4,000. Right now, it is $4,300 but you can get a discount if you ask. The specialty of this chair is posture correction and stretching your spine.
Now, there are many 'massage chairs', and almost all of them are 'Made in China'. This is 'Made in Japan'. So, Made in China chairs are around $2000-$5000 and have 1 year warranties. This Chair comes with a 5 Year In-Home Warranty .. so they will come to your house to repair it, if it has a problem. The Chinese Chairs have 1 year warranty.
And it is not primarily a massage Chair, but Spine/Posture correction .. but it has excellent massage functions too for the shoulder, neck, back, lower back, legs, arms and hands .. it has heat for hands and feet to improve circulation. It will give you the best massage as it covers a lot of your back and shoulder and legs. And it will also rotate your hips. It has hip massage.
I've tried the top end massage/stretching chairs which cost like $8,000-$10,000, but this is so far the right fit for DW and myself. This chair is ok for people 5.0 feet - 6.0 feet tall in height. My DW is only 5 feet, and I'm 5'8" so it works. If you are huge and taller than 6'1' .. you may want to try the Inada Sogno. Here are some links.
I got is from emassagchair. Although I paid in full, they also do interest-free installment for 6 months I think. Here are some links. All massage chairs are compared to the Inada brand, because Inada is the leader in this market.
https://www.emassagechair.com/inada-flex-3s-massage-chair.html
https://www.inadausa.com/massage-chair-models/flex-3s/
Outside the US, this is called the Inada Medicine Chair .. here it is call Inada Flex 3S
This link from the Netherlands should give you a lot more explanation.
I was thinking of going to a chiropractor or back therapists for my back pain .. not anymore .. this cured everything.
https://medicarelax.com/product/inada-3sflex-japanise-massage-chair/