Can't say I'm a fan honestly. Reminds me too much of PHP, I guess.

The thing about reagent/hiccup is that the markup is just a clojurescript data structure and can be composed and manipulated like one. This also means that you can easily write pure functions to generate the UI (data in, markup out).

The thing about enlive/enliven is that the markup and the logic are completely separated.

OneScript has neither of the things that I like about enlive or reagent.

EDIT: I should probably add that I'm not particularly a fan of JSX either, so I'm probably the wrong person to ask for an opinion on this.