Pro GUIDE

• very simple
• very fast
• WYSIWYG
• supports MVC 'out-of-the-box'

Contra GUIDE

• hard to maintain (to add/remove widgets)
• limited amount of widgets (e.g., no imscrollpanel etc.)
• in general, less flexibility from programmer's point of view

Decision: If only standard widgets are used, GUIDE saves time and forces the programmer to comply with the MVC paradigm.