When my daughter was in nursing school she completed a practicum during her training. She was always interested in working in pediatrics and this is where she got to do her practicum.
The only bad thing for her was she had a supervisor who did not communicate very well. Because of this, my daughter felt like her practicum experience could have been much better.
When it came time to write her report, she had a hard time keeping her personal feelings for her supervisor out of her report.
This experience was beneficial for her though, because you are often going to have situations where there is conflict with your supervisor or co-workers.