Is this a common use: Upscaling DVDs to 4K

HI tried a couple of titles and it seems to do a decent job.
Since have bought it yet is a bit hard to tell with the large watermark.

One title takes about 12h on my computer which
is a long time.

If it is not a goo idea are there other products that would be better suited for it?

I guess this is a quite common use - although many will settle for DVD → FullHD upscales like me.

And yes, Topaz VideoAI does a very good job on this task, especially with the IRIS model.