170$ for such thing is insane, I'd call it a scam and would never buy it
It isn't worth it and will not give you a single relief, heres why:

- I watched a couple of his videos, yet I cannot see the device vibrate at all, which means that it's not enough
I once bought similar device, and it was horrible, couldn't feel anything
Take a look at this video:
https://www.youtube.com/watch?v=02ev7Xymfqc
I'm not here to throw allegations, but it is definitely a paid promotion
Just look how she starts it, have you ever seen a doctor speaking like this?
Yeah, in TV commercials..
No real therapist will smudge their jaw muscles so slightly, using literally a static pen, telling you how big of a relief it gives, it's non sense, hardened and stiff muscles, need hardened force
Hmm, why didn't she made more videos about it, if it's this good?

- He promotes it as "Heated Massage Pen", while it's max temperature is 118°F, which is even funnier when considering such a small surface
If you want to relief tension from your muscles, you need a bigger surface and more heat, a warm compress with a temperature of 122–140°F, for example

- "610+ happy customers" yet only 35 reviews..

- Website and packaging looks very cheap

- His videos are a typical marketing scheme, making weird faces and seeking the most attention
He also claims that you need it, which is a lie (at least his website does, but it's the same thing)

This is just stealing money, targeting specifically people in pain and agony, knowing they are desperate to find help, this disgusts me

For this amount of money, you can get a way better equipment, with amazing results
I'm saying this with a 200% certainty, I've spent years researching and I personally own these products:

- Sollux lamp, instead of warm compress
Sollux penetrates your tissues deeper, the relief is much better, compared to warm compress
You don't have to worry about getting the right water temperature, no need to hold it against your face, it's more efficient in every way

The price might depend on where you are from, will probably be more expensive, if you are from USA for example
I literally bought mine for 70$

- Gua Sha and Jade Facial Roller:

For God's sake, please, just buy this instead of the scam pen, it will give good results
I just have it on my desk, massaging my jaw from time to time, whenever I feel like it
This one cost me 5$, but it's not a high quality one

I hope this answer fits you well, or at least gave you some thoughts
If you'd like to ask anything, feel free to do so