In one way the balancing is better, however, some things (like Attack speed) got heavily nerfed and some people will struggle to find an equally strong strategy. Some upgrades cost so much that the blueprints are necessary to use them properly (maybe not a bad idea though). The gems can't be earned twice at the same difficulty in the same level, which is good but it makes the difficulties seem more like different levels you have to progress through. Overall maybe a better state to test balancing, but some more improvements will be needed.