How will it help people with PPS?

I am coming back to this place after long time. I am starting get pain on right hip more often, and trying to change lifestyle. Though I can walk without any assistive device with limp, I am checking on all gadgets current being invented around the world. One thing caught my eyes, an Israeli company invented something for wheel chair users, seems very interesting. I am not sure how helpful will it be for people with PPS, and how expensive it is. Actually, I first saw this on BBC web. Hope new imroved such device will emerge to help us.
http://www.argomedtec.com/