I have a factory soft top and have tested the Rugged Ridge bowless top for a few weeks during the summer. Works great and I would recommend it to anyone who needs a soft top but doesn't want a full blown top with frame etc ($$$) for example when they have a hard top as well.
Jeep Top, Rugged Ridge TJ Bowless Top
I took it off, because it doesn't work with the Rock Hard rear speader bar that I have installed to protect my kids. If that is not an issue for you, the top is great. Love the open air feel but still have the protection from the sun.
GM Drive Offroad