Hi, so I just did something very similar…
I had a Rumble 40 that I bought to start my bass life.
I know a lot of folks here are very into not having any amp at all at home, but, I did not want to only practice in headphones, etc. I am very aware of risk of hearing loss and worried that I would crank up headphones too loud too often.
Anyway, 1 year in and I was looking at ‘real’ amps, and had no clue what I wanted to sound like. So I liked the idea of modeled amps, but again, did not want to stick to just PC/DAW/etc models. So that is when I ‘discovered’ (yes, it was around, I just didn’t know about it) Rumble Studio 40, which I bought and sold the regular Rumble.
For me, it was a perfect fit…why? I don’t anticipate playing out with anyone, I play for my own enjoyment/hobby. That said, I seriously considered the Stage 800 as a “just in case”, but had no idea if I would like the models features in the amp and there were none locally to try.
If Fender had a Studio/Stage 100 or 300, that is what I would have bought, but alas, they don’t.
I really like all the flexibility in the Studio 40, and connected to a DAW gives you LOADS of amp/cab sims (and effects that I mostly ignore as I have my own pedals I like), and they are able to and do add more features via wifi firmware updates (last update gave the beloved B15N and others).
So if you are going to only be a home player, its a great choice! If I knew all this when i was starting out I would have bought it vs. the 40.
If you think you will enjoy playing on lots of various models of amps/cabs, it is also a great choice for the $. High end modeled amps are not cheap for DAWs. I can go direct into the DAW via XLR or USB, both work great, the XLR you can do pre or post effects if you want clean or modeled, etc. For me, I am very happy wiht the choice.
Of course there are other ways to approach this all, the Zoom B1 Four as a lot of sims, but then you are tied to a pedal.
Lots of ways to do it, need to sort what you want to do and how you want to do it.