Yup, the fiddling is the greatest part. Which other pano engine allows for such wide customasation!
Alsoo the droplets of krpano help speed up tour making progress. Just drag 10 panorama's on a the MAKE VTOUR droplet, and the only thing thats left is placing hotspots. You could define a custom style that you apply to every hotspot, so whats left is just filling in the ath and atv.
If you dont like the default appereance of krpano, then there are some interfaces made by users for almost nothing (10-25 euro unlimited use).
If you really want a GUI then kolor is a good option. Some clients of mine give a kolor generated tour, I then add 1 line to include an xml file. And within that xml file I customize everything to the extreme. Everytime they generate a tour with all hotspots, view settings, entry points, they just have to add 1 line of code to have their own custom interface/floorplan/styling.