The approach is really different from the traditional one and I love to do experiments but few points I would like to highlight here which I found in my work and usability tests on various projects.
- Vertical scroll is the easiest gesture in touch panels where the screen is vertical.
- If the content is in a sequence like a facebook post with some kind of timestamp on it or in steps can be a problem for example on one screen there will be 2 steps and on another may be 1 only and to avoid that we have to place 1 step in screen which will increase some extra steps to reach till very last step & in facebook posts where you can not control the length of the content will make it really more difficult.
- People don't like to scroll horizontally, I found out in some of my Usability tests on an e-commerce app. people were just scrolling max 5 times where on vertical scroll this number was much higher.
- It's tough to create an experience against the natural behaviour and the example here is the navigation, screen width and reading pattern.
Key finding for me is “ horizontal scroll approach works in a controlled environment only with a certain type of content and users”