Talk about being boring!
I got this expecting a fascinating insight into the life of the man who wrote the mythical Night on the Galactic Railroad. I expected to see crazy stories and hijinks of an eccentric man and to discover his inspirations for such bizarre material. Boy, was I wrong.
Spring and Chaos is mostly boring with only sporadic moments of innovative animation. It's certainly nothing to write home about and nowhere near as good as NOTGR which is something that I suggest you watch instead. Leave this bore alone. If you absolutely MUST see then either rent it or find it somewhere cheap. Do not pay top dollar.