you can only get so far with clips, vids, discussions, etc., until you try it with your gear and hear it with your ears, you won't know for sure.
Same as always.
Before I got my JVM410H, I was considering various Marshalls including the JVM; one came up for sale in great condition for a good price, with the footswitch. I figured I could always sell it and at least break even if I didn't like it.
It covers all the Marshall tones I'd ever need, even if not as good as the original model. I'm not looking for perfection or exact match, if it sounds good to me, it is good.
I also have a Marshall that gets a lot of hate, Origin 50. I can get JTM45, JTM45/100 and SLP tones that sound good to me, even compared to the Studio series that cost more than twice as much. Headfirst opened up an Origin 20 and a Studio 20 (vintage IIRC) and the guts looked very similar, with many of the same parts, just arranged a bit differently, biggest difference is where they were assembled.