How may clients can i run from one access point Hi based in UK and have a location which will have between 100-150 devices connecting for a few hours twice a week and then a different 100 devices connecting twice a week also. 
I've been eyeing up a asus ea-ac87 but would this be suitable? 
We already have a Dreytek vigor router but it's struggling to handle the wifi strain. 
Any advice would be appreciated. 
Thanks 