Solved all the 1-player levels.
Almighty Sawblade: Definitely my favourite puzzle of the set, took me a long time to figure out though I had some skills left over. 2-player version looks interesting as well. Horrible background colour.
Descendants: Quite interesting, but, as geoo would say, brute-force solution.
Dude, where's my shovel?: Good easy level to introduce the trampoline object.
Grab your umbrellas: Visually awesome but really annoying to play.
Not too straightforward: It was. Solved with 7 skills.
Some like to run: Part 2 is excellent but not too hard, so having both parts seems pointless.
Take a dive: Backrouted using one of my favourite tricks, the interrupted basher step.