Review of Neocomplete powered by the Slant community.
Ranked in these QuestionsQuestion Ranking
Pro Good plugins
Noecomplete's author has made some very good plugins which are also actively maintained.
Con Autocompletion can be slow
Some users have reported that Neocomplete's autocompletion can be slower than other alternatives.
Con Neocomplete does not work with all Vim versions
It requires Lua support and the Lua driver.