I have zero experience with any form of studio lighting, and before I get the credit card out, I want to learn as much as I can before I commit to anything.
For me, that info is too vague. What do you mean, you don't have experience in flash photography at all, or you don't have experience in off-camera flash, or you simply have never worked within a studio?
I use the Einstein as well and it does the job.
The question is, is that the right tool for you, and if yes, is it the right time? I wouldn't spend $1000+ unless I am sure.
When is the right time? Answer: when you are sure that this is the path you want to go.
Many bought a piano but many became just a furniture.
Do you know posing, do you like it, do you require it, do you have patience for it?
Maybe you need just a photo journalistic approach? Many adores it.
Would you find models to practice, would you find customers to pay it back? Can you find a studio, or is it on location? Do you like dragging another 10-20KG of gear? and so on.
Jumping into studio strobe is like jumping into photography version 2; GAS is the key word. You won't stop with one Einstein, you will get modifiers, triggers, more modifiers, more strobes and more GAS. LOL.
My suggestion, start with something small and see if that is the right path. Something that you won't regret putting just aside.
Maybe some manual flash for $45 and simple umbrella first. Learn all different kind of lighting setup, get some "cheap" model and try it (a sister, daughter, neighbor). I had some friends who gave up due to posing and directing. Some gave up due to post processing. I use it less due to weight, and frankly I like natural light a lot more , even the hard one.
If you master and adore it though you could be the next Neil V Niekerk. I admire the guy, but I know I won't be in his league. Just not my path.