I got the support about 2 weeks ago while my car was in the shop, it is a very clever very simple design. I finally installed it last Saturday. It was very easy to install really does only take 5 minutes, you just unzip the seat cover wire tie the device to the existing seat frame supports and zip the seat back up with the tube and pump hanging out. I found as I think most people will I put way to much air in it to start, I wanted to feel it. It will easily make a nice bump in the seat. After driving a bit I found this to be way more than what is needed, it is easy to bleed off a little air and after I bead off air about 3 times it is really great. I have it so the seat just touches my lower back, gives me just the added support I needed and is barely noticeable. I am really really glad Joe came up with this, I have a bad back and it really helps. I have heated seats and this should put more of the seat in contact with my back as well for more warmth. Thanks Joe for another gadget well done.
Pro's: It works as designed, is VERY easy to install and really helps with my bad back, gives me just enough added support. I love it, I have the first one Joe did and Joe I hope you don't want it back, you can't have it. I'm keeping it. I may even get one for the other seat in case I ever have a passenger.
Con'S: Not sure if this is a con as it is really user error, you can put to much air in it and it becomes a bit uncomfortable, easy to fix let some air out. I can't think of any other con's at all.


Here is the link to order $65:
http://www.jpmcoachworks.com/catalog/product_info.php?products_id=162