There are plenty of faults with this game, but imo they all add up to that really nice punishing difficulty that I haven't experienced since Dark Souls came out. The "lulls" between waves that other have complained between ways really serve their purpose as they trick into slacking off in building your economy and defenses, which you will pay for dearly in the last way on most maps. But yes, if you don't like turtling - it might not be the game for you :D
