We had a 5-star experience at Nikki's Capel Cottage.
1) The place was very clean, spotlessly so.
2) Everything was well-appointed and the place was well-furnished. There were plenty of toys to keep my children occupied, and the backyard provided much space to hang out. There was a TV with 10Play and other on-demand channels. The kitchen was a greatly-appreciated feature which helped us to prepare meals when we did not feel like going out for dinner.
3) There was a very good heating system which helped when the temperatures plummeted in the wintry nights
4) it is located in a quiet neighbourhood, and there is dead silence and almost absolute darkness at night save for street lighting. I personally appreciated these. It is also a 5 minute drive away from Rosebud West Woolworth's / Coles / the beach.
5) Communication with the host was excellent.
All in, we had a wonderful time. We are regulars to Melbourne and if we ever came back to the Mornington Peninsula for winter holidays, we would be looking to book this place again.