Flange Hanger! Anyone using these pipe and valve supports

Anyone using these pipe and valve supports? [http://www.flangehanger.com/]
I have a small company of around 30 guys and I just want to get feedback before spending a few thousand $$$

It does look like a neat, useful product. I have personally only done a tiny bit of work where it would have come in handy, but think it would be a headache saver and labor saver. If it works right It could turn a lot of 2 man jobs into 1 man jobs.

I don’t think this is the right forum, you might ask the manufacturer for referrals of companies that already use them.