Normally I don't like levels that strictly try to recreate modern levels in an older version of the game without really taking into account the limitations of said update. Apeture 1.9 does visibly suffer from this issue, feeling a bit shallow due to it simply trying to copy every little aspect of Aperture's gameplay but makes up for it in how well it recreates the effects

I don't like direct remakes of levels in general, but this is pretty close to the limit of what can be done

(The gameplay has since been altered to be more engaging and I like how it plays now :) )