Specific things I'm looking for in a Todo manager:
1. iPhone <=> Mac apps and syncing
2. Hotkeys + Speed
3. Shared lists (you don't even mention this until I get into Guides, but I love it)
4. Smart lists
5. Nesting
6. Pasting images
7. Projects + subtasks
8. An inbox
9. Snoozing to the future
10. Focus mode (gets rid of everything else EXCEPT for the current task... really nice as a reminder when I start a task, hop into a meeting, and flip back to the todo list to see what I'm meant to be working on and it's staring me in the face vs. seeing a long list of items). Don't think you support this - first saw it in Amazing Marvin.
Concerns:
1. How painful will it be to import from Things?
2. What if the app goes away? I don't want to lose my stuff or switch again, it's a pain. How big is your company? Are you a going concern with real customers or is this a side project that will fall by the wayside?
3. I do love not paying a subscription for Things. I like the $150 one-off fee for 18m. Would consider that.
Regardless, going to play with it today. Seems very promising!