Temp-to-hire offer, worth it? (Detroit)

I got a contract offer for 15 months as a paralegal and I am unsure whether to accept. There are 15 people counting on me, so I am trying to be careful. The contract could extend. How did you handle benefits?

I took a contract and it converted after four months. The time also kept my skills current.

Ask about extension likelihood and whether the team has hired contractors before.