Server security is the most important things to protect your server from attackers. A bad security setting will brings your server to a serious threat. Remember it, when you make your server to be online your server will facing thousands malicious/malware that ready to harm your server. The security is a must-have by your server and the basic of security can be done by securing your ssh access.
The service is good enough, I can access my site from my country at a fast enough speed. The only drawback is their support some time too slow to response some of my tickets, I know maybe it is because the time zone differences between us.