Complex sentence: First ScotRail services from Glasgow Central to Edinburgh Waverley and North Berwick call at the station three times a day in each direction, though some consider them to be poorly timed and ineffective as a commuter service.
Split into simpler sentences: First ScotRail services from Glasgow Central to Edinburgh Waverley and North Berwick call at the station three times a day in each direction. Though, some consider them to be poorly timed and in-effective as a commuter service.