In 161 approaches to NWI as passenger on scheduled flights, and I can't just find at the moment how many approaches in the driving seat on light aircraft, the only go arounds I have ever done or been involved with were to satisfy the training syllabus for the PPL.
It's a pretty easy airport. No terrain to speak of (East Anglia), not too much competition for runway space, and runway orientation not too badly aligned for the usual winds. Only snag can be a sea fret which rolls in at short notice bringing low RVRs.