Oh yeah for sure, part of the advantage of Clip is that it's very versatile and gives you a lot of different options. (My problem was that I still preferred Photoshop for both sketches/storyboards and coloring both, since I'm more used to the tools and interface there, and so it just wasn't making sense to go to the trouble of transferring to another program for inking and then transferring back if I wasn't going to take advantage of the tools specific to Clip that Photoshop doesn't have.)
Ooh, I think I ran into the no-fill problem as well, when I was trying out the animation program OpenToonz, and trying to practice with vectors again. I think you were supposed to be able to fill things in and have something be a single object, but I didn't quite have it figured out before I just went back to Photoshop again. It's tough when your brain is used to thinking of things in a certain way, but then, probably different art styles are suited to different toolsets.