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I'm not... I'm just trying to help you make this map even better.
Sorry you took my suggestion as hate.

I worked hard on this map so dont be a hater

I found two problems with the chamber, if you fizzle the companion cube or fail to have it land on the button correctly (which can happen easily since it has a long fall to go down...) the player becomes trapped. Try removing the hard light bridge, and adding buttons to all the cubes in case cubes get lost.

I managed to desrtoy the frankencube, so I couldn't escape.

Good one, but I didn't need lasers or blue gel to kill the turrets.

No need to portal-bump, use blue gel or lasers, or to kill turrets. More fun (and not hard) to exit and leave every turret standing. I found that way more fun, maybe nobody else would.

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

Portal bumping at the end allowed me to kill the turrets without lasers and blue gel. There is a potential trapping moment with the light bridge door if the player forgets to bring the cube with them and they fizzle themselves out.

Try my SP map?
http://www.cs2bus.com/sharedfiles/filedetails?id=398483361
Try my COOP map?
http://www.cs2bus.com/sharedfiles/filedetails?id=376181211