I liked this map a lot, despite me having lost to the last waves. As you mentioned, this map isn't for the faint of heart and requires quite a bit of tactical thinking. The beginning is rather smooth and I actually didn't expect such an incline of difficulty towards the end. There is nothing much I would criticise, despite the fact that I found it a tad to long for my taste, as the game play is refreshing but kind of remains unchanged throughout the map. Therefore, I would have liked it even more if it was shorter (and If I had won, of course - sigh!)

I had a hard time copying with the wind attack of the hero's priestess/witch as she blew her allies (especially the knight, samurai and giant) way towards my dungeon. Also, I found it hard to cope with them being grouped to the samurai which made them unnaturally speedy xD

Last thing that made me curios is whether Dofi is enthusiastic about tower defence or if this was meant to be a little but friendly provocation :P.

all traps are now Undestructable

you have now 5 imps from the start and later 8 imps if you are palying a bit and the Gem message is removed and the doors are open

you will now have more imps later in the game and the gems are removed.

all traps can now shoot over other traps

This map is changed from time to time so download it again to have only 5 trolls and 5 orcs and 5 imps. The imps have now invisibility and the heroe waves are little bit stronger