Love the game, but one issue with it:

My biggest gripe with this game is how double tapping the vortex tower automatically pops it, which I do by accident sometimes. As a result, my entire strategy falls apart and I have to start again from the beginning which is annoying. Furthermore, because I cannot build vortex towers (at least in Medium 1), I cannot replace them. Would be great to eliminate popping in the first place, or at least not have a hotkey to activate it.