Can an online site creator make web design simpler?

We look for feedbacks on our online site builder

It is compatible with Internet Explorer, Firefox (can run on Mac, Windows and Linux for this reason).

It allows real-time collaboration in web application development, has advanced features as for instance database creation / management (forms creation, shopping cart, etc,…) and possibility to add easily any php scripts. We target not only beginners to webdesign but webdesigners and developpers as well with this substitute to offline web authoring tools. For now we provide it to web hosting companies which offer it to their hosting customers.

You can try the demo on www.dragdropsitecreator.com/demopage.php

Thanks for any feedback, positive and negative on Drag drop site creator