DISCLAIMER:
Read my profile before reading the rest of my comment!

Isn't that what Portal 1 and the beginning of Portal 2 are for? Your test for beginners doesn't even stack-up to being as good as the tutorial levels of Portal 2's single player story mode as there are exploits in your version and the story mode was better paced.

I didn't need to fling where you put the fling pit. You need to fizzle each hallway. Didn't need to use the other pedestal button controled portals in the second room because each area is open for shooting portals.

Your "idea" has been done before several times. Here's one I can think of (and it's not even that good):
http://www.cs2bus.com/sharedfiles/filedetails?id=150149564
http://www.cs2bus.com/sharedfiles/filedetails?id=158293689

Try my SP map?
http://www.cs2bus.com/sharedfiles/filedetails?id=377129237
Try my COOP map?
http://www.cs2bus.com/sharedfiles/filedetails?id=376181211

thanks :) have you tried some of my other tests?

Was very cute !