Cyberghost types; OpenVPN

I've used these guys now for a few months and their service is not really suited very well for router setup; they either keep changing their certificates far too often or the servers become too full to be useful so you need to switch to one of their many, many other servers (have to do that far too often Utilizing their own in-house software seems to be the only way to realize any value out of their service because it's remove you from having to search and setup the high turnover of servers they seem to burn through.

I'd like to ask, how are people coping with service providers like these for use with OpenWrt? Or is the solution to only use a service that has more reliable servers, less of them and whom do not frequently change their configs/certs?

Can we identify the least labour provoders for setup with OPENWRT?