Never will be my forte as I won't invest too much time in it
- Some terrain bugs here and there [the black spots on terrain]
Really!? Like what, would you please take a screenshot of some so I know what you mean.
- Illidan appears to be Spiderman! [he appears to be walking on the walls]
Yeah, it's because of the invisible platforms. It was a pain to do that shrinking business with terrain between cliffs where virtually no ground unit can fit in unless collision is off. It's where the platforms saved me but with the price of weird pathing.
- Well carried out but problematic sometimes
Indeed. I'm not sure if it's actually the engine itself or me not knowing exactly how to make things damage Illidan in a smooth way.
- At the beginning, there is not much space in movement and Arthas inevitably kills you. It is hard to do in normal mode.
True. Many players had had issues with that but making the place wider would make it too easy because Arthas moves slower than Illidan. The idea is for you to discover the zone first and then realize you can draw Arthas to the zone where the troll is and then come back to the starting zone collect some coins and repeat so that you let Arthas be as far as Illidan as possible.
It's not recommended to play on Normal from the first go. I don't think I mentioned it ingame (or at all).
- Absolutely great triggering, but it awfully lagged on my computer [maybe it is for my computer, so not deducting. Are you sure you saw to every memory leak?]
I didn't get errors as I tend to the leaks. Do you remember where the map started lagging? Where was Illidan, during which puzzle?
Does contain -hint commands, but they are not always working. Normal mode can be only played by those who have already played once.
It works in some places where I thought players might need hints. Yeah, it's not recommended to play normal first unless you have experience with the genre.
- Not at all recommended if you do not like puzzles
Well, I am not sure this should be a con since it's like saying football is not for football lovers. This also applies to the pro. By the way, having that both as a pro and con basically makes it null.
- Does not have any story
Well this also shouldn't be a con (depending on context of course) since most escape/puzzle maps are devoid of any story whatsoever. But I agree with you that it doesn't have character development.
In terms of story, there is a little one, Illidan escaping from Arthas' Frostmourne. Note, that all this happens while Illidan is unconscious. It's a semidream state where even the dead/undead have a real presence. I am planning to let Illidan explain this happening in an interlude of the campaign I'm working on if hopefully I'll be able to.