It's got a drag'n'drop UI creator, you use Python to build the front-end and the back-end (with proper autocomplete, VB-style), and it even has a built-in database if you need one.
Don't create your own icons, use already known icons, Ab and Ab-but-with-underline doesn't clearly mean "Text" and "Link" but the word "Text" and the famous anchor icon do.
Also as far as I can understand it won't let you export apps the way one could run them on their own outside of your servers - this limits the usage too.
I liked the tree view that netobjects fusion had years ago, it makes bigger sites easier to work with.
Still trying to carve out time to try pinegrow to see if it's got enough drag and drop and resize to make me no longer miss netobjest fusion.