Any advice on the Erasmus experience
Going for an Erasmus, an EU student exchange progamme, may be a plus, not only "the obvious cultural advantages" (like learning a language better than in the lab / during holidays) if you watch out for similarities and differences in your field, comparing your home and your hosting institution.  Hopefully you will recognize both the odds and the benefits of different teaching / learning cultures and mint benefit for you.  Use it as a chance to learn differently, including different topics than at home.

If possible, look for integrated programmes (like the ones by the French-German University, for example), where two institutions are partners who mutally agreed on the curricula. Otherwise upon your return, if there is no recognized equivalent of what you did at your host institution at your home institution, you may have to attend lectures and lab classes a twice and hence, delay completion of your studies.

Going for an Erasmus is a potential obstacle, be prepared some won't understand you this well anymore, as your horizon of experiences may diverge from theirs.  At your host institution, at least at the beginning, you will be a foreigner; at your home institution you may be earmarked as "thinking different" or "s/he once left the boat".  You may somewhat "tainted" like a foreigner, or become a pacemaker returning with new ideas.

Is it better for getting a job?  Again, it depends on the where you want to go, if the potential employer recognizes, appreciates and supports the benefits of someone who left the nutshell.   Some do their studies including a PhD and beyond, promptly find a job, never even thinking about getting into an Erasmus; all staying in the same city.  Some face the difficulties of "you no longer think/act as we expected as a true/pure (insert your nationality) physician / biologist / .... would do."