As I recall, Toy Story Midway Mania is very jerky. The ride stops, you look at a scene for a few minutes, then it starts again with a jerk and takes you to another scene. It seems like it would be smooth, but it wasn't.
I can't judge whether it would be "worth it" to you to go to DHS, because I don't know how you like to spend your time in a park. There are shows and there are character meets. I haven't done most of the rides because I get motion sick, but my guess is that you also would want to skip Rock 'n' Roller Coaster, Slinky Dog Dash, Star Tours, Twilight Zone Tower of Terror, and the new Star Wars rides. Not sure about Alien Swirling Saucers and Mickey & Minnie's Runaway Railway.
You probably can find videos on Youtube of most of these rides, to see for yourself.