Played this map (ccpcirclejerkrc1) several times today, both on a nearly empty and nearly full server.
I was largely impressed. This map has plenty of potential, but a few flaws seem to consistently annoy users and undermine gameplay.
Getting Lost:
Most common complaint. I notice the signs on the walls pointing to CP's, but they need to be larger and more prominent. (Consider Valve's unmissably simple blue and red arrows.) Color coding them was a good idea - keep that, maybe expand color coding theme to hallways and cap points.
Circular Capping:
A minority liked it but most thought it was pointless and confusing. People weren't able to get an intuitive grasp of what was happening. Defending is difficult.
People were also vocal about the win conditions, which apparently can include open (neutral) cap points. How about requiring all points to be capped before the map is won? I don't think this will cause stalemate problems.
One possible alternative - allow circular capping in either direction. In other words, adjacent point capping in both directions. I think this might alleviate gameplay issues.
Stumble points:
Several places are difficult to walk around smoothly - like the wooden bridge/walkway. You end up having to jump over stuff that looks like you should be able to just walk over. Even these out - it would be very helpful.
Map Name:
Nicer comments included 'juvenile'. Need I say more? It also fails 'family friendliness' in some players eyes.
I've made maps and know what kind of effort can go into this. I look forward to seeing where you might go with this one!
Is this thing loaded?