1. Google Page Creator Advantages: Free (no PO needed!)
You control content and posting (no tech specialist needed!)
Pre-made template and layout options (no HTML knowledge needed!)
Made, stored and published on Google's servers (no hard drive space needed!)
Web-based, so available from any web connected computer (no kidding!)

2. Google Page Creator Disadvantages:
Like all web publishing, not as easy as you'd like
Limited options
"Glitchy" - minor unexpected results that might require a bit of HTML repair to improve
Not intended to create fancy pages
No built-in navigation tools