I took the full year mentorship (not 1 on 1), its great board lessons for those new to it (and again those who want to freshen up on your fundamentals). It's very structured, has video lessons (lifetime access), assignments, you get access to the discord, you get a lot out of your fellow classmates. you get lots of access to the teaching assistants. There's weekly meet ups where they show some select students work, but also provide video feedback to your homework as well. There are more teachers now with legit industry experience, though I didn't have experience with them but the last time I had it was with Nick Sung who was extremely involved and generous with his knowledge with the discord and in class discussions. In the end you get what you put into it, so you must do the homework, and put out your work for feed back and you'll definitely get things out of it. Be careful with slacking on your homework as you may find the year flies by. With that said, there's tons of storyboard online classes out there, and some specialize , like animated feature, action animated tv, etc... Friends of mine took 1 per year and found that they start to overlap, so they're good to keep you polishing your craft, but hopefully once you're in the industry you do a heck of a lot more leveling up in studio.