I did earlier today and already played until level 14, where you first get to use the wheel and I'm hopelessly stuck.
Anyway, it's a funny story with that game for me. It's the very first PC game I ever got, when I was like six or seven years old, specifically it was a bundle of the first two games. The first one that was actually MINE, I mean, not my brother's nor "ours". And I never really got to play it until today. On our 486 the game ran at an unplayably low speed for some reason (although it absolutely should have worked fine), I also didn't manage to get it to run on our next machine. I managed to run it somehow many years later when I was already a teenager but I got stuck on the very first level. I remember vividly that I had five guys, I used two of them to get out of the first pit, another two for the next pit and the last guy reached the left border of the level and I had nowhere to go anymore since he was isolated from the others and had nobody to climb up on. I couldn't believe how ridiculously hard the game was from the first level on, rage quit and never fired it up again.
Today I stumbled upon an episode of Einstone on YouTube (an utterly shitty cartoon about cavemen) and it kinda motivated me to get Humans on GOG. Anyway, I was remembering that horror story when I ran Humans 1 today and to my surprise, while the tile set looked exactly the same way I remembered it, the first level's layout was entirely different than the one in my memory. The level was challenging but doable. As was the second one and the third... out of curiosity I just also tried Humans 2 and guess what... it was the exact level I remembered, with the two pits and my last guy getting stuck in the corner. And I ragequit just like in the old days, lol.
Oh yeah, and I also totally didn't manage to finish the first level of Humans 3. Apparently an utterly shitty difficulty curve was the developers' main design philosophy. And to make it worse there's no manual included with that one nor could I find a copy online so I don't know if maybe I'm just not getting the controls or something.
Anyway, I'm somewhat disappointed by the game (Humans 1, I mean). I remember it getting a lot of praise in the German press back in the day but the level design is pretty bad, you are often forced to repeat the same frustrating sequence of jumps and throws to get all your guys into the same spot and it's easy to get permanently stuck due to a guy or item landing in a bad spot or simply dying. It does have its moments, however, and I'll still play it some more.