While parties and fires have flared in the student sector, there have been few serious problems compared with years past.
Firefighters have extinguished several couch fires in North Dunedin this week, and police moved on hundreds of party-goers in Castle St midweek.
That compares well with events in 2009, for instance, when the OUSA toga parade descended into disorder, leaving Dunedin's main street littered with eggs, rubbish and glass, car and shop windows smashed and participants injured.
OUSA president Laura Harris said the week had been "fantastic really''.
She paid tribute to the organisation's volunteers and the "Are You OK?'' programme that looked after students at events.
Of the week's events, she picked Clubs Day as one of the more successful, with "a really big turnout of clubs and students''.
On student behaviour, "in general, the majority of people were really well behaved'', she said.
OUSA communications and marketing manager Tess Trotter said there had been more than 1500 hours volunteered during the week, "and we've got tonight and tomorrow night to go''.
"From OUSA's perspective, we've had a lot of people working extremely hard but so far so good and we're feeling really pleased with how it's gone.
"We're really stoked about the fine weather.''
The financial success of the event would become clear over the next six weeks to two months, as invoices came in.
About 500 more students than last year attended the toga party at the Forsyth Barr Stadium on Wednesday night.
The Freshman 2016 event at the stadium on Thursday night attracted 3800 and last night more were expected for Shapeshifter.
Numbers were in line with expectations, Ms Trotter said.