Pros: Accurate reconstruction of the flash version, plus some very well made extra areas. The lighting, looks and atmosphere that is essential to Portal has been excellently created in this mappack, and the way the extra elements that the flash version had, (that the original portal did not), have been incorporated perfectly.
Cons: Apart from a couple of bare, empty walls, nothing bad comes to mind.
Improvements: An odd camera or decal on the odd very empty wall.
Notes: Lets hope for a flash Portal 2, so we can get another great mappack.