For home training:
How experienced should a clinician be before offering to support home users.
We've worked with hundreds of clinicians who have incorporated neurofeedback into their practice. PhD's, MD's., LCSW's, RN's, Educational psychologists, the whole mix. Once they get in the field, almost every one quickly understand how powerful neurofeedback is. They become very respectful of it, and tend to start slowly. Most relatively new clinicians have told me they need a lot more experience themselves before they'd ever consider supporting a user at home.
Most of the best clinicians were extremely hesitant to support home users remotely till they are very far along in the learning curve. How long - probably 2-3 years of solid experience using neurofeedback. (Note - someone can do neurofeedback even 2-3 years on occasion and not be very experienced/knowledgeable.) It's much harder to support clients at a distance and to make clinical judgments about the training (should you change what you are doing, have you done too much of one vs. another protocol).
If a clinician is relatively new at neurofeedback and already feels so confident in their skills that they are ready to support home training, be very cautious. There's no point in doing home training if you're not going to get results. We are already seeing people say "neurofeedback doesn't work." When in reality, the way the neurofeedback was done didn't work.