Question about NZXT H9 Flow

Depends a bit on what kind of case you have now and what you expect from the new one...

Yes, it's worth it, it's a magnificent case with good ventilation to cool the components and with rgb fans, it's really very pretty to look at.

I think so. It's a very nice case, well laid out and relatively easy to assemble and maintain. What's more, it offers a great view of the components with its two tempered glass panels.