The most typical use case for fulltext search is type suggestions for terms as the user usually does not remember the terms by heard and also wants the UI to be responsive.
At the moment default configuration of Bigdata search works only with whole words. There are also some docs about configuration but they do not explain how to configure wildcard search (if it is possible at all). It would be great to see either this feature implemented or (if it already exists) to see some additional sentences in the docs about configuring it.
P.S. I know about possibilities of integrating with USeekM but setting up Elastic Search (and dealing with poorly documented USeekM) is an overhead for users who just want to have type-suggestions working