I have used boots extensively in the past and currently have a Hyperice.
I have an issue with soft-tissue soreness. (e.g.) Massages, while helpful, are often excruciatingly painful. I see this as a limiting factor as I'm often "sore" during hard efforts.
Given my limitations, I feel the Hyperice has been very beneficial. It was hard to use due to soreness initially. I would also have a DOMS situation where I'd be more sore the day after I used it. However, now that I've had it for a month, I can use more pressure and do not get sore the next day. I've also noted that my legs have been feeling better: Less sore, more power during hard efforts. I use the percussion massage in addition to the (triggerpoint) roller, and both have been beneficial in different ways.
Boots, on the other hand, were nice to lounge around in. They were *Potentially* useful after a big day or a big training block. Really hard to say if there were benefits. They helped me "feel" more recovered; a bit "lighter on my feet" but did not address leg soreness etc.
Your mileage may vary.
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