I’m glad I bought the device. It was cheap compared to others, and I don’t think pricier ones come with a hand to massage your back where you can’t reach yourself :-D
The massager suits me because it has several attachments and I’m gradually trying them out. I don’t know how pricier devices work, but this one is great. It has many speeds, though four are plenty for me (otherwise I could use it as a pneumatic hammer :-D) It’s great that it’s rechargeable, not battery-powered.
It’s a bit heavier than I expected, but that’s no surprise with such a powerful motor. I’d prefer the plastic attachments to be made of softer plastic, but when massaging over clothing it’s not a big issue.