I love DHS but I did notice on our last trip that the park isn't laid out well for efficient touring. RnRC was down for a short time in the morning and that immediately caused ToT to get a longer line that didn't really dissipate even after RnRC opened back up. The mad rush for Jedi Training and TSMM is annoying as well. 10 minutes after the park opened FP times were already at 1:30 in the afternoon. This was during August, which was a slow time, and the ride was at 120 minutes at times during the day. Just crazy.
The Great Movie Ride is hidden behind the hat. We actually missed it on a previous trip because we didn't make it a point to seek it out.
But really it's about the layout. Head to the back of the park to get a FP for TSMM, then hit up ToT or RnRC if standby isn't too long at the front of the park or head to one side of the park to do Star Tours, snag a FP for RnRC or ToT at the front of the park, then head over to the Backlot Tour at the back of the park, then to the Great Movie Ride, then use your FP, again at the front of the park, etc. It's just a lot of back and forth if you don't want to wait in line. FP+ will help with some of that because you can organize your FP times for the three headliners better, but for some of it you'll still be back and forth.
Now, if there was an expansion to include more rides and/or lands then that would help I think. Star Wars Land is the natural fit in my opinion.
All in all I like it, but there is room for improvement.