I see it as the best nocode app builder out there(tried Airtable + Softr, Notion obviously, Coda, Jetadmin, Plasmic, Tooljet, Noodl - you literally name it and boom - I tried it).
It's valid, intuitive plus extremely powerful(I actually didn't see such combination among nocode builders). It's a backend and frontend combined. But as a bonus there's step by step crystal clear education of the platform on YouTube and Gamified lessons inside the platform with even programming observation itself(yes, the level of support is just fantastic, God bless the founder Mark Piller - what a wise soul). It's automation added recently (which caused this overload of emotions and posting this review).
Well, that is like a humongous park for the app growth after separate gardens offering some useful but not sufficient tooling for your business.
I love it really much as it provides me with all I need, I feel protected without being overprotected though. Backendless is open source too. I feel like I'm simply on the right track with this one. LOVE IT.