I am considering taking it down the line.
The greatest difference may be that backgrounds will be more varied in a calc class than in the later classes since everyone is from different high schools. If you had an advantage in calculus, you will not have it in later classes. If you were disadvantaged, then later classes may seem easier. It helps a lot if you can get familiar with a subject before the class begins. If the analysis class is a core math major class, it will probably be more "proof oriented" than you are used to. It would be good to be mentally prepared for that rather than being blind-sided.
I will be taking a course called "communicating in mathematics" before taking it. it's an intro to proof writing.
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