Thoughts on 300hz+ monitors for GD?

I keep seeing these super cheap 320hz 2k monitors and I feel like they would be awesome for GD. I understand the TPS limit is 240hz but I still feel like the extra frames and smoothness would help a lot with timings and also ship gameplay. I'm currently on 180hz but want to upgrade soon. Does anyone here have one of these monitors if so how is it with GD?