In bygone days when the Belfast Derry line went via Lisburn to Antrim I found the trains fairly packed. Good catchment area, Knockmore, Ballinderry, Crumlin etc
When I use BFS I always drive. Train down to Antrim from up north never seems to correspond with the 109a Bus Service to BFS from Antrim Station, and if you cannot get bus then its a taxi from Antrim Station
Chicken and egg situation