it's a genuinely nice game, even more considering its a mod
the story is a bit predictable though, it's pretty much the portal 2 one
puzzles are okay, they're balanced, but a little easy sometimes
funnily enough i only got stuck a little bit at the start of the game, and that was because i just couldnt find some portal surfaces
but it's nice, the levels are amazingly well done
and the dubbing is great, something i felt was a little bit off in other portal mods