This is completely my personal opinion based on my own needs and situation.
I was using Lightroom 6 in my previous computer. I bought a license for it, but it was not a subscription, I could use it till the end of time if I wanted -- and if my computer allowed.
My computer started to show aging issues, so I upgraded, but I couldn't transfer Lightroom 6 to the new computer. Adobe doesn't have the installers in their website, and I didn't want to dig into obscure websites looking for installers. So I went with the new subscription based offering.
My feelings? I don't like that I don't own the software anymore. As soon as I stop paying the monthly fee I won't be able to use it. Over a lifetime of use I will end up paying way much more now. Plus, if you update to the new version, your library will be updated to a new version that it's not backwards compatible, so you are pretty much stuck with the new version if you start editing photos with it. I'm sure that this new subscription model is great for Adobe, but I don't like it.
Yes, I will always have the latest version, but I don't think that for what I do, how I use Lightroom, the move from Lightroom 6, which I owned, to the subscription based Lightroom, which now I'm just renting, wasn't worth it. I was forced to do it, but I would have happily stayed with Lightroom 6 if I could have.