its a fine game, i just wasn't aware of how much the quality of your run would depend on your choices in the shop versus actually playing the game. even disregarding that, i didn't even need to use any of the synergies or anything to get particularly far (though I didn't beat it) but it would have been more interesting if i had to actively develop my build throughout the game instead of steaming through most of the waves for 40 minutes and then suddenly lagging behind.