I had tried Wattpad about two years ago, when I originally joined, and I really didn't know what to make of it. I guess in a way, now that I look at the site and what you can do - it's a great way to show off bits of your novel (or your whole novel!) and entice a reader to take a gander at your book!
I encourage other authors to take their time to look into this! It's a great way to set up a bit more than just what Amazon or other online Book Sellers allow readers to preview. This way, it's completely up to you!
This is where I actually set up mine today: https://www.wattpad.com/story/59554977-allerleirauh
It's great, and I really really really encourage this! Check it out!