Visually Hydro is very nice and I wish we had more maps with they hydro-electric plant theme before Powerhouse finally gave us another map with that theme.
Gameplay wise it's not very fun. Having the map reset every time a point is capped gets annoying very fast and it's very easy for the map to stalemate if one team caps and point then the other team caps. I've always called that getting stuck in "Hydro Hell". It also has tons of very small and narrow choke points that a demo or solider can spam so easily, though a lot of early TF2 maps have that problem.
I give Valve props for trying something different with the map (obviously all the launch maps were Valve trying different things to see what worked, even Well and Granary both being 5CP maps have the difference of a startup time on Well but no startup time on Granary) but it didn't really work and obviously Valve feels that way too since they didn't make any other Territory Control maps. I am happy to see it was added to the official server rotation though, I feel like Valve should have servers up for all maps and modes and let people play what they want.
Gameplay wise it's not very fun. Having the map reset every time a point is capped gets annoying very fast and it's very easy for the map to stalemate if one team caps and point then the other team caps. I've always called that getting stuck in "Hydro Hell". It also has tons of very small and narrow choke points that a demo or solider can spam so easily, though a lot of early TF2 maps have that problem.
I give Valve props for trying something different with the map (obviously all the launch maps were Valve trying different things to see what worked, even Well and Granary both being 5CP maps have the difference of a startup time on Well but no startup time on Granary) but it didn't really work and obviously Valve feels that way too since they didn't make any other Territory Control maps. I am happy to see it was added to the official server rotation though, I feel like Valve should have servers up for all maps and modes and let people play what they want.