@Frisk_Cat Welcome to the BassBuzz forums!
We have some people that started with something smaller than the Rumble 100 and then upgraded to the Rumble 100 after finishing the course and were glad they did. Here is one of those discussions… Rumble 100
I have some health issues and I had some of the same concerns. After I watched some of Josh’s YoutTube videos I was pretty sure I wanted him as a teacher. Then I read here on the forum about other peoples experiences. Finally, it came down to getting lifetime access so I could move at my own pace and the 1 year money back guarantee because I didn’t want to get burned.
Now that I’m over half way through the course, I think it was the best money and time I’ve ever spent on music.
Good luck @Frisk_Cat. Even if you don’t do the course you are still welcome to read and participate on the forums. Glad to have you.