Tutors

Positive impact
2/5 impact
They can answer any questions you may need, are there to teach you an education and support your learning.
Normally teach groups of people so cannot give you their full attention, may have to wait for questions to be answered so learning time will be wasted.

Personal experience- In class learning coursework, tutors sometimes are with someone else so I'd wait to be answered instead of asking a peer or using the internet.