So to some degree Spanish is in fact easier than most languages. Except for one major component that people do not discuss. Spanish changes significantly from one country to the next. And after 15 years of Spanish study, it still baffles me why NOBODY TALKS ABOUT THIS. As a foreigner learning Spanish you are not told that major differences in the language will hinder your ability to understand and communicate in the language as you travel from one country to the next. This does not just apply to foreigners that are learning Spanish. Native speakers trying to communicate with native speakers from different countries also suffer through this.
This video, Oh, how hard it is to speak Spanish!, is a song that exposes the frustration of learning Spanish due to its regional variations.
Check out these other articles on Spanish Slang.