Overwhelming.
This game would have been good, if you could choose to not have three castles. In a matter of seconds I was overrun with enemies. I usually like these defense games and I'm usually good at them, but I can only stretch my concentration so far.
It actually hurts your head after a while trying to remember which castle you are on and if you need to up grade and which path needs soldiers and blah blah blah. And there wasn't enough money to meet the needs of my army.
This game is just a flop compared to your last one.