I just downloaded my free upgrade. I haven't used Topaz products much, though I own the suite. I tend to just reach for the old familiar Nik Collection when I want to do something because that saves brainpower, and in any case, I don't PP my images much, preferring to get it right in camera as far as possible. But I really need to put some time into learning the newer tools.

PS: Topaz "free for life" doesn't mean much. They do a few upgrades for a little while, then they bring out a "new" product with a different name and you have to pay again. This recent free upgrade may be a response on their part to increasing cynicism from Topaz users. Let's see if the new one finally understands my not-very-recent cameras, such as the (quite old now) 5D IV, which the previous (paid for) versions don't. (I guess EOS R support is a bit much to hope for, but let's try it out and see.)