I didn't consider and test KDP, so I can't say anything.
As for Leanpub:
1. Last time I checked, they didn't let me take the customer emails and use outside of Leanpub. I find it a very important limitation to the way I do the marketing - via my mailing list. In practice, my readers are more Leanpub customers, not mine. I want to build long-term relationship with my readers, to deliver more value to them, even after they bought my book.
To be fair - Leanpub has their own tool for sending emails, I haven't tried that. I'm happy enough with MailChimp, not to see reasons to switch.
2. From the tools I researched, Leanpub is the best when it comes to PDF/mobi/epub generation. It takes a while to learn their process but it was worth it.
3. I'm really grateful that Leanpub allows the process I'm doing - generate the files using their tools, but selling on another site.
Overall, the tools you're choosing should fit your whole process of researching, writing, marketing, selling.
Comments
How does selling on your own site compare to selling on Leanpub and KDP?
I didn't consider and test KDP, so I can't say anything.
As for Leanpub:
1. Last time I checked, they didn't let me take the customer emails and use outside of Leanpub. I find it a very important limitation to the way I do the marketing - via my mailing list. In practice, my readers are more Leanpub customers, not mine. I want to build long-term relationship with my readers, to deliver more value to them, even after they bought my book. To be fair - Leanpub has their own tool for sending emails, I haven't tried that. I'm happy enough with MailChimp, not to see reasons to switch.
2. From the tools I researched, Leanpub is the best when it comes to PDF/mobi/epub generation. It takes a while to learn their process but it was worth it.
3. I'm really grateful that Leanpub allows the process I'm doing - generate the files using their tools, but selling on another site.
Overall, the tools you're choosing should fit your whole process of researching, writing, marketing, selling.