If you get Nora for your lab instructor, you should thank your lucky stars. This was her first semester, and I think she did an amazing job. She's really knowledgeable about the material and can help you out with any questions you have during lab, but she keeps her opening lecture concise, which is helpful.
She's also an extremely fair grader. She makes lots of useful comments and corrections on the homework, but doesn't necessarily take off points for every little mistake.
The best part about Nora is that she's extremely friendly and approachable (unlike some of the other lab instructors). Definitely take her section if you can.