Howdy Jd!
1) We might try to figure out a way to shorten the video. So much new stuff to share! 2) All of the presets are editable. 3) I think that 95% of the use cases will eventually be using the timer, which will be preset perfectly for each tea. 4) We respect Teavana, but we're not a fan of their app's design. Maybe that's bias. 5) Agreed. 6) Agreed. We're working on. It was actually an original feature, but a little trickier than one would think.
Thanks for your feedback! If you have any more, drop me a line at sam at teaapp. com!