Yes I have done it in the past and had good and bad experiences - no different than permanent hires.

I have found unis to be fragmented institutions therefore finding the right individuals that can help may be an issue as communication between faculties is not wonderful.

Also found a need to explain in great detail what was required to avoid issues as most of the students I spoke to had not had any previous work experience.

Some saw it as something only to benefit them and did not see it from the employers side at all.

Overall I think it is a good thing and worth trying