A game made by Airtight games, who made Dark Void, and Kim Swift, who was one of the main minds behind the original Portal. So it seems a little unfair to compare those two games directly but it's sort of inevitable. Both first person puzzle games where you have a narrator commenting as you play through the game.
That aside though I think they've actually managed to make a compelling puzzle game. Yes it doesn't always quite pan out and some of the humour falls flat and I realise that if you hate puns you're going to be tearing your hair out at some point. But the parts where you just have a giant room with a bunch of moving parts and you think through what you need to do and then just do it is awesome. The parts that are less awesome are the ones that are slightly more platforming based, that can end up being rather clunky and awkward at times, especially when it's asking you to use some of the worlds smaller items as platforms like the safes instead of the nice big couches.