You can install more than 40 different modpacks and more than 22,000 plugins from the control panel - just with a single click! It's as easy as it gets.
Does a plugin require access to a SQL database? When ordering your server, you get access to a MySQL database which you can control with phpMyAdmin.
Your Minecraft server will have its own dedicated IP. This means that your server will run on the standard port, and you'll have no issues finding a free port for plugins.