Moving to wordfence from ithemes?

Hi Wordfence forum,

I really want to try wordfence i just want to be sure everything on my clients sites will be okay. so to explain my setup:
A 2gig Digital ocean droplet with serverpilot installed on it. i can check the ram and cpu usage in digital ocean cpu is not a problem at all it stays at 0.5% Ram is at 43%-50% around that. i also have a firewall and automatic updates on server level so fail2ban etc. also SSL is enabled on all sites.

for now i have 13 wordpress installs on this server. they all use ithemes for now but i just don’t know what to do now. i think ram isn’t going to be an issue so that is good.

in regards to security i really like the wordfence firewall and realtime defence system. but on the other hand does diffrent table prefix and changing login location help like ithemes does?
also i enabled all system tweaks and wordpress tweaks in ithemes i think you know what these tweaks are. Do they really help?

I really don’t want to start hating on ithemes or wordfence i just want to know what would be the best thing to do.
i am just not sure what to do right now :/
Thanks and sorry for this questions. Kind regards Dieter