Kodak Ultramax film has many many years of reputation as being a film that is well constructed, reliable and easy to use.
This ISO400 film is versatile in that it can be used as a film of choice for many situations. It is a very good general purpose film.
Here's what Kodak has to say about their own film:
"ULTRA MAX 400 Film is a worry-free, easy-to-use high speed film designed for snap shooters. ULTRA MAX 400 Film gives you the flexibility you need to take consistently better pictures in more picture taking situations, better low-light picture quality with fewer underexposures, better results with zoom lenses, greater flash range, better "stop-action" photos, and reduced impact of camera shake. Even when enlarged, ULTRA MAX 400 Film delivers excellent sharpness and fine grain for crisp, clear pictures. Optimized color precision technology provides consistently bright, vibrant colors with accurate skin-tone reproduction for natural-looking people pictures."