I only read the first 6 of so responses and agree that you should first talk to your GP about whether vibration technology is appropriate for you.
Then, if the GP says yes, for the money, the Revitive is so overpriced it's ridiculous. I have 3 (why? I don't know) vibration plate machines and they're soo much cheaper and are suitable for the whole body, not just the feet and calves.
With the Revitive, one MUST sit on a chair and just place their feet on the machine, it CANNOT take the weight of anyone standing on it.
A vibration plate (previously known as a wobble board) can be used in the same way as the Revitive but you can algal stand, sit or lean on it. Each board will take a different weight load, one of mine takes up to 150kg (approx 24stone) and they're an awful lot cheaper than that rubbish thing the Holmes couple advertise. Remember, they got paid for that ad.