Yeah it's a good service for hosting images and video. I'm actually quite impressed with the Nostr integration.

If you have an account, a few Nostr clients allow you to make a note in the client and it will drop the file right into your nostr.build account and then attach it to your note. No need to upload a file first at the nostr.build website, get a link and then put that link in the client. Saves some time.

i use it. I like it. it has the best integrations with major clients. its nice to be able to go back and put files into folders to reference later.

there are plenty of ways it could be improved though but i expect it to lead the file storage space for nostr.

I pay for it and it's worth using and works well and worth supporting and has possibly been operating at a loss, because it's integrated into several clients for free uploads. That said, check out upcoming Blossom https://github.com/hzrd149/blossom