I signed up a while back (last year?) but this is the first time I've had a go editing...
I did a big edit in my first go - lots of stuff on Great Barrier Island, mainly adding the road from Port Fitzroy to 4 Ways Crossroads, by tracing over the GPS tracks (I hope they were accurate) there were normally 3 or 4 tracks to average out, although sometimes in hilly, windy parts of the road where there's lots of bush the tracks went a bit wild.

I also added Claris aerodrome, the road from 4 Ways to Claris, touched up the coastline from Rat Point to Shoal Bay, Mulberry Grove, Gooseberry Flat & Pah Beach to Bob & Tipis.

I also adjusted the Ferry path to end neatly at Shoal Bay Wharf and added that as a Ferry Terminal.

I also named Tiber St in Island Bay in Wellington.

I also corrected Little Harts Nursery (had been "Hart Hill Primary School" - which was across Haddon Road, but no longer exists :'( ... )

I also note there are next to no roads in Havelock North yet, the path between Hartley Rd & Tower Rd needs a bit of touching up, and the coastline on the Barrier needs loads of work. I used to LOVE drawing and tracing maps of the Barrier as a kid, how cool is this that I can now do them accurately and for the whole world to use!