A few points regarding Plesk, and why I like it:
- free to use for up to three (3) domains
- easy SSL installation
- easy Email setup
- more intuitive interface than cPanel
I’m not saying I don’t like cPanel: I do, and I’ve got a cPanel license on one of my servers that is the one that allows up to 30 domains. I have been using that particular cPanel installation for over three years and I really have no complaints. It is very reliable.
The advantage of Plesk is that they give you some leeway to install and use it on a few domains and without the necessity of paying a good bit right out of the starting gate.