Nope

Are you *supposed* to abuse the air strafe in order to make it up to the platform?

At the start, if you place your portals right, you can still get onto the panels before they go up, basically removing the main part of the puzzle XD

Also, the player can be trapped beneath the panel arms of the ledge. Maybe an invisible brush should be placed there.

I'm not sure what the intended solution is, but I could not fling myself from where the grate is to the ledge. Instead, I flung myself into the window beside the ledge, and I jumped over from the edge.

Yeah, I know him as Doctor Derp. He was obsessed with making a better version of it.

Good fun, one of your better puzzles. That said, I found it fairly easy, as ϺΞΤЯΘΉλϺ badgered me into playing an earlier test version and his advanced version before I played this version. Thanks for creating.

My playthrough of this map:
http://youtube.com/watch?v=t-dplP8f_jg

Thanks ^^ First, if the grating was any further out, you would hit it when you try to fling, slowing you down. I couldn't figure out how to stop that clipping bug, I think it has to do with the moving panels there. That texture bug is wierd, being as it's on of the default ingame textures. In another update I've made but not released I've replaced those parts with white wall panels anyway.

Steam's 1000 character limit really hurt this post.

GJ on 1.1! I have a few nitpicks though. Because I'm that kind of guy.

I feel extending this ledge would help bring attention to the grating.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1478700678

I'm not sure how this happened, but maybe nodraw could help?
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1478701377
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1478701428

Is this design choice part of the portal 1 asthetic, or is it lacking edge textures?
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1478700728

Think about adding textures here, as well as rails and grating behind the arms.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1478700920

As a final thought, maybe you could add some speaker systems, circuit breakers, and/or a door to the ratman den. Also consider making the acid reflect entities.
I'm looking forward to seeing this in it's final state! I hope this helped.