Bookfunnel vs StoryOrigin?

Once again I'm having decision paralysis over which to choose and I need to decide soon. They look pretty much the same and do the same things, but a couple features are different and I just can't decide. Basically I just want to send ebooks to reviewers and beta readers so I know either would work.

I like that Bookfunnel uses watermarked documents to deter theft and I like the beta reader response feature on StoryOrigin, for two things. I suppose I just need to decide which features I want more.

I noticed that Bookfunnel charges extra to integrate with your existing mail service as well as extra for audiobooks, is that true? This isn't necessarily a deal breaker but I want to confirm.

Any recommendations or suggestions? Thanks in advance! 🙂