I enjoyed watching Necroscope play through the first one after I'd played through it myself.
Check out his playthrough here:
https://m.youtube.com/playlist?list=PLD4293E9AC8398F19
He has a great voice for Let's Plays. If you like what you see, you should like Grimrock 2. It seems to be the same game essentially, just with more cool stuff added. If he's talking a bit long to solve a puzzle (it's a "blind" Let's Play), you can always fast forward a little.
But honestly if I were you, I'd just look a little bit at it, and if I like it, not worry about Grimrock 2, but instead get the first game, then move on to the sequel afterwards.