I personally prefer short format with a key exception. The message must actually get across. I don't want to read 2 pages of ramblings if the core idea can be shared in 240 characters. That being said not all ideas can be shared so briefly so at times I appreciate a more traditional Steemit post.

I will use Zappl more once they do some updates to the Android experience. If I'm wanting to share a short message it's usually because I'm on a mobile device. The current app experience won't allow me to even share much less add a picture to the post. Once that's adjusted I'll be 100% in!