Well .. see I usually don't work in studio itself .. I mainly use Maya as my primary tool. When I was doing that image - there were no Maya plugin available so I've exported it to studio and rendered from there.
Can't say about previous versions - was not using it enough to say something for sure - but it definitely feels more stable. Especially FIRE preview is not crashing anymore. Altho I've noticed a habit after myself that before do FIRE I always save
- muscle memory
I love new Substance Painter Material Assistant - that is just - I can't even spelled it out enough- it's amazing. That lightsaber scene on the first post (V5) has only 2 Maxwell materials and none of them even have a displacement. Both materials were created in literally less than 20 seconds.
Beside that .. colour randomiser (and uv randomiser) are big things - might look very niche - but it is a great thing to add that little bit of natural touch to the scenes - so that everything is just a tiny bit less than perfect.
So again - hard to say whether it is worth it for you to upgrade (for me, I'm on Mac so I'm not even benefiting from all the GPU craze) - overall feels fairly stable and .. I don't know maybe it is me (who want's to believe in brighter future) - but it does feels that everything renders slightly faster. I don't know - not sure - it's just feels that way. But that's a great feeling for sure
And, you know .. again - 500 euros .. - I'm sorry, but I don't think that is a lot if you're using it for production. I mean - 1-2 small projects - and that's it - you returned your money. And you got a very nice capable piece of software. If you're a freelancer - yup - that might be a bit of a big sum for a one time payment (would you prefer subscription rather ? 🤪) - but for studio - 500 euros - is not a question.
So I dunno man - if you're considering just for yourself - without intention of making money with it - for some very light freelance or hobby - might be a bit heavy - considering you already have a V4