So I've had a chance to play a couple of levels from groups.

Totem trouble (2), and Jigsaw jumble (?) (2). And ...

Well, they seem more like almost the same thing. The two jigsaws that I saw were very similar. One had a left and right side, that both released a switch; both switches let you out. The other had a right side with a key that unlocked the left side. But the left sides from both were very similar, the right sides from both were very similar.

It felt more like ... like the right side was made from template parts. Here you can have exposed spikes, or covered spikes. Here you can have a long spike strip, or a longer spike strip with shootable places that can be exposed -- oh, yea, you'll need a bouncing bullet to open that one because the opening faces the wrong way. Or there's this way to have the gun puppies, or that way to have the gun puppies.

The big turtle dude might be in this spot, or in that spot.

In short, it doesn't feel so much like variations on a theme, as slightly different instances of a single variation of a theme. It's like two levels in Gauntlet 2 that differ by only a few blocks being changed here or there (or differ from their Gauntlet 1 versions by a few blocks).

I haven't had a chance to try the various castle levels; I don't know if they are the same way, or not. I haven't tracked down the multiple jelly farms to see if they are "almost identical" also.

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If you could take a theme, such as "farmland taken over by semi-intelligent herbivores that they will defend", or "Old city, abandoned, now inhabited by undead that keep coming back", would you want multiple almost identical things, or various completely different things? Would you want something like "Jigsaw" to be an assembly of random parts (not just reskinned CT, but its own parts), or just a few almost identical levels? Or perhaps something else -- can you see, and/or would you want, several completely different fixed levels?

If you could, would you want to have a dungeon with several levels on a single theme, with real differences between them? Would you want to have several levels like the current "almost but not quite identical" variations?