Tinalynge I've finished Blossoming Flowers just last week. It ended at 267 chapters :D
Congrats! Finishing a book is no easy feat. And 267 chapters. Wow. Isn't a great feeling when you can see the end of your book. Also sad at the same time being so attached to the world and characters you were writing.
I definitely agree that to build up a reader base on your own is time consuming and can cost too. I don't have the money to promote out for my self publish titles, so hopefully will gain some exposure with my contract here.
I think you're in the right place for contemporary romance. It's a well read category. If you don't mind letting WN hold the rights on a contract, they can make it go far if they see your story falls within their catalogue strategies.
Just keep in mind, regardless of what kind of contract you receive to determine income method (e.g fixed rate/premium or royalties), you would be required to sign over the story rights to WN and meet certain user conditions.
So far my experience contracting my book, I guess, is easy. Meaning, that I haven't had to change my writing routines or methods to adjust to the contract. I've gained in exposure and readership. That's the big pay off for me with this experience. My story also has a chance to be exposed to other medium and gain royalties, eventually, one day. Big maybe.