Well, this might sound biased, but is it true. Czech is the only language which has many different words describing one thing, and yet these words do not have a distinct tinge.
Since Czech is a Slavic language, it is closely related to Russian, Slovak and Polish. Therefore, learning Czech can prove to be beneficial, especially if you want to study the other Slavic languages. Czech is not like Russian since it uses Latin alphabet and this makes it easy for you to read and write in Czech. Once you master Czech completely, you will be able to understand some written and spoken Polish and Slovak and spoken Russian.
Many people start to learn Czech as a foreign language after a while, mostly if they are dating a person from Czech, or they are working or want to live in the Czech Republic permanently. However, it's a good idea to learn a foreign language even when you are not sure whether you want to live or work there. Even though you might not want to live in the Czech Republic permanently, Czechs would appreciate the fact that you attempted to learn their language.
Czechs have a very heavy accent when they are speaking English, and many people have a challenge in understanding them. Additionally, word-to-word translation is challenging, especially if you don't have a professional translator. However, this can be easier for you if you understand Czech to some level.
Unlike German and French, Czech grammar is pretty simple, especially when you are at an advanced level. Although it looks hard to start, once you understand cases and patterns of word endings, then you will be fine.