Finished a playthrough on Zealot recently. The new patch brought a lot of improvments which raised the experience for me. Higher level missions are extremely well balanced and intense, if you have the right team, but that's true of all good horde shooters. Never gets as intense as GTFO but reaches about the same heights as LFD2 and the combat is extremely visceral and satisfying. The only element I think game really lags behind its contemporary's is its optimization and at times story. The world building is great, but the clear lack of direction for the story is a bummer in an otherwise fantastic experience.