What is it like being an BLC, ALC, AIT, or MSI Instructor?

I personally enjoyed it, at the same time I was a civilian instructor in a junior college. I enjoy impacting knowledge. Besides that, it is very demanding. My biggest challenge was dealing with other instructors who merely wanted to check the block.
And the demands depend on whether your'e instructing BLC (some adult-babysitting needed)...ALC or SLC. The higher the better. Most of the work is done prior to make reservations for sites that you may need. Anyway being AGR it's hard to get a slot. Except if you're TPU.

I am a developer at Ft. Benning, started out as an instructed. It’s a great break from FORSCOM. Just treat the students “similar” to FORSCOM. Some things are different biggest thing just don’t lose your cool.

I started as a medic 68W, then went to M6 school LPN(now 68C). I became a pediatric LPN and it was the most fulfilling job I have ever had in my life. I then got ‘promoted’ to NCOIC. I hated every second of it, and vowed to get out of the Army as soon as possible. After 2 years as NCOIC I spoke with my leadership and begged for a change. They put me at the school house to train 68C’s. I was a jaded unhappy soldier who had made up his mind to get out of the Army in order to come back as a government employee and be a nurse again.
The school house experience was incredible. The kids(and they are kids) for the most part are excited to learn and want to be there. Their enthusiasm is infectious and really knocked me out of my funk. I found myself truly enjoying teaching, mentoring, and providing leadership. Yes, some will do stupid things, and a lot get in trouble, and they will complain about everything, but that’s the military. Don’t let the few bad apples ruin your experience with the good ones. After my students graduate I friend them on face book, and it’s great to see them advance in their career and grow personally.
I am now out of the Army, and I still get messages and questions from my old students, life advice and nursing questions.
So if you like helping and advising it’s a great job. Also remember, you can advise these kids all you want but they won’t necessarily follow your advise. So don’t stress over it, just enjoy advising them, and facilitating their learning experience, and (Hopefully) defining good leadership for them. You literally are forming the future of the Army, and your MOS. What can be better and more honorable then that?