Slow and uninspired
The game is just too slow. It takes way too long to start building units. It's patterned after an RTS like Age of Empires, but that game had much better pacing. There were also quite a few glitches, it would occasionally say "Not enough" without telling me what I didn't have enough of, and it doesn't tell you how much it costs to upgrade buildings or what the upgrades do. The text says the same as when it was level 1. You also have buildings that cost some of the resource that the building itself is supposed to gather. This can be very bad if you aren't careful in the order you construct your buildings, since the game can become unwinnable or unbearable if you mess up.