For instance, I use OVH object storage in conjunction with an image hosting site on Linode. The latency from OVH Canada to Newark is small enough its pretty seamless and if OVH Canada goes down, I can use an EU location with higher latency. Linode fails over to their London location (assuming there is enough availability with VMs, the spin up may be automated but I run 0 webservers there 99.9% of the time).
Personally, I wouldn't pick DO because they tend to have poorly disclosed problems with their "new features" that you really only get an answer to if you contact support or dig through their documentation. For instance, DO's object store doesn't handle index files at all but everyone else's does. So if you try to switch, you almost immediately end up with "eh...srsly?" moment.
Linode and other hosts at least deploy the standard feature set when they expect money from you.