I just found the MSI Ventus 2x RTX 3070 card used (for 6 months, still has warranty) for 420€ and can't decide if this is good. I just received a new Zotac RTX 3070 Twin Edge from Amazon for 580€. I can still return it. 160€ difference.

I heard quite bad things about the MSI, especially in terms of heat and noise. What is your opinion on this? If I didn't had the offer for the MSI, I would've just went on with the Zotac which works perfectly for me. Interestingly, I've read that the Zotac would be loud, too and I don't think it is after applying a custom fan curve and it also is quite cool after undervolting. How much hotter will the MSI be? Should I be concerned?

Btw. I have absolutely no clue how warranty works when selling a used card. Do you have any experience?