I really like it ... the ios app is great, it syncs super fast, I love how easy it is to switch between plain text, markdown, todo list, etc... It's perfect for my workflow, I just find it odd that nobody else was mentioning it.
So here I am doing so! If you don't use it, check it out.
It looks really, really interesting. But when you say it syncs super fast... is syncing initiated manually, or do you mean that changes on one device appear on another device quickly?