[SP] Asbestos is harmless!
Your first map? If I'd guess I'd say something like tenth at least 
. Really great job, clever puzzles, especially I like that timing with cubes, I had to count seconds to finally do it xD.
My mod for Portal 1: Portal:New Adventure
I'm playing custom maps and record my first time of playing them. So the run is not perfect and may not use only intended ways, but maybe it can let you see how other people may understand the map or you could just enjoy someone playing this map for entertainment.
Anyways, here is the recording:
IWrtH541VHM
(Link: http://www.youtube.com/watch?v=IWrtH541VHM)
Also note the video description for more feedback and my signature for additional project information.
Portal 2 Playlists: videos 1-200 | videos 201-400 | videos 401-600 | videos 601-800 | videos 801-1000 | videos 1001-1200
Absolutely amazing job on a first map! Everything good that's been said before is true for me as well. It's rare to have a map that has multiple solutions, none of which break it! A very solid 5.
getting cube off top button
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Basic Mod for playing .vpk files Needs to be updated for dlc2, but still works[/spoiler]
I agree, this is an awesome job for a first map. The timing-based puzzles were tough for me because I'm so clumsy, but not so tight as to be impossible. Nice touches with the frankencube and singing turrets.
Solid 5/5 from me!
--Marvin, the Paranoid Android
Alright, gave the map a little update after 2 years, fixing some stuff and making it Workshop compatible. Seemed appropriate after releasing my second map.