We have demos available online that you can play around with: https://www.ultimatewb.com/demolinks (under the Resources tab at ultimatewb.com) - there are links there for both the frontend and backend (admin panel).
We have some blog posts on Ning if you would be interested in comparing it with UltimateWB: https://www.ultimatewb.com/blog/?s=ning
Official UWB Support Team! Contact us directly here!