Price is okay if you use an Android or Windows Tablet Otherwise probably better if using the new Resolve 16 Cut Page for editing. Only useful for mobile. Price is a bit high, IMO. Best as a companion app to Premiere Pro on Mobile, otherwise you're probably better off just using iMovie for free if you're on an Apple Platform.
Can't access your work if you ever stop the subscription - or at least render it. Free plan has some serious render limitations.
Personally, I'm buying Resolve Studio. Anything I edit on mobile likely will never touch a PC, and there are already decent alternatives for that with much lower long term costs.
Rush is not worth the same as a Photography Plan, or anywhere close to it - and PSDs can be opened elsewhere, along with Lightroom Catalogs which can be migrated to other applications.