Is the back bubble a legitimate treatment?

Hello, I do a lot of computer and desk work and I'm starting to see the effects on my back. I don't have any pain at this point, but just running my fingers along my spine I can feel certain vertebrae stick out more than others. There are two main vertebrae that do this: one in the middle of my back and one in my upper back. I wasn't very good with my posture when I was younger (teens) and I believe this is the culprit. Even though I'm quite diligent with my posture these days (mid 20s) (I also exercise regularly--calisthenics, yoga, biking, jogging), I do not see my spine improving--these vertebrae still stick out just as much as before.

Before going through a full blown treatment with a doctor, I was hoping to look into what I can do myself. One thing I've started doing is hanging upside down on my free-standing pull-up bar (which I'm hoping will have a similar effect to an inversion table). Then I saw the "Back Bubble" online and I was thinking that if I could wear this while doing computer/desk work, it might be very effective (I could guarantee daily treatment if it coincides with my work).

The only problem is that I'm having trouble determining whether or not the Back Bubble is a legitimate treatment. Of course the web is littered with scams for anything (and, while it's no more than a feeling, the name of this product just wreaks of a scam). Has anyone here had experience with the Back Bubble or know of its legitimacy?

I really hope Back Bubble representatives do not populate this thread ...