Dropbox has a great scan feature (I used to use a different app for that), that allows you to immediately scan and upload docs.Evernote. 

HI Vince,Nice job with the interior, and the carport is a good feature too.If this were mine, I'd add a cement fire ring and a picnic table in the backyard.Also, I noticed no curtain rods.If it wasn't already rented, and If your not going to have blinds installing curtain rods might be a good move.Because tenants in this type of rental sometimes hang (heavy) blankets from rusty reused (16d) nails as curtains, and that really chews up the walls.Hopefully your tenant stays long term.Good Luck!

What features and data are most in demand?

I like the search features: https://www.biggerpockets.com/searchAlerts can be really helpful too: http://www.biggerpockets.com/alerts

I like the search features: https://www.biggerpockets.com/searchAlerts can be really helpful too: http://www.biggerpockets.com/alerts

Buildium has a ton of features that are super cool, but I don't use them like I could.

Our current home has been featured in Dwell and some other magazines for architecture.

I like the search features: https://www.biggerpockets.com/search

Many of their features are free so you don't even need to add a line item for the cost!

I do not use learning mode or "people sensing" features.