Did you (as the moderator) notice that:
1. It is sometimes hard to correctly interpret the responses?
2. There is extreme dependence on the performance of the moderator (you) !?
3. Coding and analysis is cumbersome (necessary)?
4. The group is not representative of the general population – we have a mixed classroom!
5. The results are subject to researcher or client bias?
Plus, the environment and your preparation is essential!