I would say that the Pro features, other than the cutting size limitation, are all nice-to-haves, but not essential. The nesting feature helps you to place multiple parts into a single sheet of material. The job sheet is a customized web page that summarizes details of the job: size of stock, where zero is, and what tools are used, etc. It’s handy as a reference, but again not essential. These are things that would be useful in a production shop, but less so for a one-person hobbyist setup.
As @Julien and @stutaylo mentioned, you can always upgrade later if you decide you want those features.