I created a virtual tours Stirin Castle (pre-war property baron Ringhoffer) and a golf course near Prague. It's all 600 megabytes, and it was my "graduation". :-)
The layout looks great! Usability of the tour overall is pretty nice. Lots of maps to tell where you are and clear navigation made it pretty smooth to use. Horizont is still a bit not straight tho But overall it's awesome! I like it a lot!
Ou, error found. After hiding the navigation and want to show it again, after clicking the button there is "WARNING: unknown action: plugin[map].activatespot"