Freelance teaching

To help me pay the bills while i do an internship i have the opportunity to work in a language school teaching english. all schools seem to offer the freelance status only, no employment contract and when questions are asked about the status the schools are very reluctant to help you very much. i have seen various prices per hour, from 15 to 27, which isn't bad money at all.

Any schools which you would recommend to work for from your own experience?

What do you think or know of the freelance status? Is it all that complicated to organise?