Discouragement Encouragement
Played through this one yesterday. The visuals are top-notch - I'm a little jealous, actually. 
Here are my thoughts on gameplay:
-As cool as the broken floor looks, it makes placing the cubes level nearly impossible in some areas.
-The random turrets in each room were really annoying. They don't really add anything at all to the puzzles IMO. It's frustrating to walk into the room for the first time only to be mowed down by turrets you couldn't even see until it was too late. Once you know they're there, they're fairly easy to dispose of, making them a non-obstacle. After that they just add clutter to the already-small space unless you blow them up with the laser, which gets tedious after doing so repeatedly.
Overall: Absolutely brilliant visuals, gameplay feels like it needs some big adjustment.
Here are my thoughts on gameplay:
-As cool as the broken floor looks, it makes placing the cubes level nearly impossible in some areas.
-The random turrets in each room were really annoying. They don't really add anything at all to the puzzles IMO. It's frustrating to walk into the room for the first time only to be mowed down by turrets you couldn't even see until it was too late. Once you know they're there, they're fairly easy to dispose of, making them a non-obstacle. After that they just add clutter to the already-small space unless you blow them up with the laser, which gets tedious after doing so repeatedly.
Overall: Absolutely brilliant visuals, gameplay feels like it needs some big adjustment.
The second room has indicators that pinpoint what does what, you should look at them more closely. I don't know how to make that more obvious, but if you have a suggestion i'm all ears.
They actually are quite large, not huge but not small either, so I don't see where your getting the crowded look. It might be from too many things in the map at once. I will look into cleaving un-needed detail to both remove lag and fix the clutter feel.
As for not knowing what to do, that's part of the puzzle- figuring it out. You know your supposed to trigger the relays, but HOW to trigger them is the puzzle.
I dunno totally what happened, but I had some sort of prophetic vision tonight all of a sudden that revealed to me how to finish this. Seriously, the solution just sort of showed up in my head. I actually had to boot up the game and try it to make sure it was legit. It worked too, so... 
I don't think I was playing with a clear head earlier; sorry 'bout that. Maybe it was Laser Fatigue - I do believe I'd just played another laser-centric custom map earlier. Don't remember which it was.
This one's a lot more fun when I'm able to think straight.
The level of detail might indeed be what gives the "crowded" feeling. It looks cool, but it ends up distracting from the gameplay and making things seem cluttered with 5 or 6 layers of beams/frames/foliage/pipes/etc. overhead and in the walls. Don't remove too much of it, but finding a balance might be good.
Perhaps putting a func_clip_vphysics in those torn-up spots in the floor would be beneficial? It'd let you keep the broken up floor (it's still a nice touch) while avoiding the cubes tumbling inconveniently.
Although I had a lot more fun coming back to give this a second run, I still stand by my original thoughts on the turrets; they don't seem to do anything except kill you right when you enter the room, and since you can then remove them quickly once you know they're there they don't exactly contribute to the puzzle. Walking in and dying isn't too fun. 
Re-assessment: Amazing visuals, gameplay is fun but only if you aren't already sick of lasers when you start. 
-V1.1 RELEASED!-
*changelog*
-fixed an exploit in the first chamber where you could skip part of the puzzle.
-fixed an exploit in the last chamber where you could skip part of the puzzle.
-fixed a few texture misallignments/indicator lights not appearing properly.
-fixed a particular turret's AI, it should now act as intended near it's fellow turrets.
-fixed ending text being backwards.
-fixed some panel clipping.
-altered last chamber's puzzle to force you to require all materials provided for the puzzle.
-altered geometry and removed extra detail props to help reduce lag and reduce the "crowded" feel,
as well as to make pivot cube placement easier.
-altered turret setup in the second chamber to make them more part of the puzzle than a hindrence.
-removed deadly turret from the first room because it was not really part of the puzzle.
-added some rattman hints to make the second chamber slightly easier.
Video: http://www.xfire.com/video/47c0a8/
Looked amazing o.o
My fav thing was the birds chirping :d
Trying it again after the update, still superlative as ever against any (few) contenders. Can't get over the doubts about having only multilaser puzzles, though.
Hm. Was the elevator supposed to take forever to actually start moving? It never started for me, so I just noclipped my way to the level :/
This is a glitch I have yet to fix (as I don't know the problem) that occurs if you play a coop map before my map. It's also not consistent, which doesn't help with the fixing bit.
Good contest map. One of the best one I've played so far. You have a great eye for style, no doubt about it.
The map was a lot of fun to play, and what I love about this map design is that there are going to be several different solutions to each chamber, not just one. This gives the map a lot of replay value. I will go back and solve the chambers again some different way. This is the first map in the contest that I've played that allows for multiple solutions. That is very cool, and sets itself appart from many others.
Overall, very well done!
Here's another video of this map, idk if you mapmakers are as worried about these now that the contest is closed but here ya go anyway: