Love the team at DigitalOcean but Spaces was NOT reliable the last time I played with it. It’s also lacking key features in lifecycle and notification areas. Maybe they’ve gotten things together in recent months/years and I haven’t gotten the update, but it was very “you get what you pay for” when I tried to stage a project using it in 2018/19.
Spaces is not good, in my experience. Their Frankfurt storage just stopped working for like a week. And last time I checked they still didn't support critical features like per-bucket access keys or index.html support.
Scaleway also provides a similar service. Had an issue recently (deleted a bucket, and couldn't create another bucket with the same name) and their support replied back in minutes.