I agree with the others -- how the finished product looks depends a lot on brushes. I see people bemoan that digital can look too perfect and slick, but with some good brushes and textures that's much less of an issue. It also depends on practice!! If you're not used to inking digitally, it's going to be slower than inking the way you're used to!!
I tried inking digitally for a couple of pages of my comic and I found there wasn't a noticeable difference from my normal ballpoint inking when I used this stumpy pencil brush, which is already what I was using to make digital corrections:

(different scenes, so not quite the same image, but same character at least!)
when you zoom in you can definitely see a difference! But for the finished product, it didn't make a WHOLE lot of difference, and it took me about the same amount of time (digital sliiiiiiightly longer, but made corrections and straight lines much cleaner, so it was a trade-off). The biggest difference was that inking digitally seemed a little rougher on my wrist, so I ended up going back to traditional after a few pages.