The framework is great and has some good ideas. Updates are very often (sometimes a bit too often) and unfortunately it destroys very often the existing design. Most of the time I must reorder the widgets and attach modules again. So it's always a good idea to test it local before updating a production server.
Because updates are often a bit problematic, I rate it only with 3 stars. "Never change a running system" is very true with Pagelines.