When Netflix first launched, it was great - they had a massive catalogue of older/pre-existing content, and were making a bunch of their own new, original content that likely wouldn't have been made elsewhere. Their UX was also pretty great - and made finding interesting content easy.
They made it dead-easy to sign up, there was no pushy retention teams or hoops to jump through if you wanted to cancel. That's why I paid them.
Amazon Video launched here, and they had some content that I was interested in, but their UX from day one has been awful. They insist on adding pre-roll ads, despite that I'm paying them. The video quality was pretty awful and was quite regularly at something like 480p quality on my (4k) TV. Yes their X-Ray tech is neat, but the ads just drive me up the wall.
There was a time that I would've happily paid for HBO - they had/have some really great content (at least in the US), but they are or were not available in AU outside of a $120+/month PayTV device that I really didn't want.
Now there are dozens of streaming services, with their own $15-30/month fees, which will have (or not) selections of some of the content I want, each with their own uniquely awful and annoying interfaces or quirks of whether they will or won't play on my TV or device.