Yeah, the main thing is owning the rights and being able to post them externally on Spotify, YouTube, etc without being obligated to cite Suno and being able to use them commercially
If I unsubscribe tomorrow, I still own the rights to songs I'd created whilst being subscribed, in perpetuity.
I don't think that works the other way around. If you were to subscribed tomorrow, I still think the rights to songs you created whilst using the free version would remain with suno.
It's all in their legal terms and conditions.
Being an unpaid subscriber, you can post them externally, but you need to cite the use of suno and you can't use them commercially.
I can extend songs, add more verses or solos, but I can't change certain small details without generating a new song. It's a shame, but it's only early days with this technology and I think it will become more advanced very quickly.
I'm definitely gonna check out Audacity, it sounds cool.
Have you tried Udio yet? I'm a paid member there also, but it's very tricky. It seems more advanced, but I haven't got the hang of it yet.