French grammar is very irregular and has tons of exceptions. However, for a beginner I wouldn't focus too much on that anyway. The pronunciation and accent of French is more difficult than Spanish because it is not straight forward.
However, French is not that hard and I would not discourage you from learning it. Just start little by little and focus on speaking and listening in the beginning. Make it fun and progress at your own pace.
Watch French Movies
Read French comic books
Listen to French music
Learn basic vocabulary and carry a notepad so you can write down learns you want to learn or new words you learn.
Source: French Class
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According to the US Foreign Service Institute and many others, (for native speakers of English) it's about the same as Spanish, Romanian, Italian, Portuguese, Catalan, Swedish, Norwegian, Danish, Dutch, Frisian and Afrikaans.
The only sizable language that's significantly easier to learn is Esperanto