I have been down the road and have a few thoughts looking back. Mechanical mods definitely look better, IMHO, and we all know it is better to look good than to feel good. I spent a while using a mech mod with nautilus tanks and it worked fine, I have a nautilus on a mech mod right now.
A regulated mod, like the MVP or provari, was a far better choice for me at the start. They are easier than a mechanical and, with some of them you do not need batteries, chargers, etc. Just plug it in the USB and it charges. It also tells you when to charge, looks after the battery, and keeps you safer.
Now I have both regulated and mechanical. If you wait a few more weeks you will have regulated mods that go to 100 so you can do, almost, what a mechanical will do.