Firstly, Global Journeys was excellent in their pricing and handling of the booking, and I am booking another tour through them again. I appreciated Hannah's involvement in the process. The scenery, of course, in the South Island is magnificent. I would travel with Grand Pacific tours again and may do a repeat next year as we missed out on Milford Sound and Te Anau due to floods. Both the driver, Rod, and tour leader, Brenda, were of a high standard and extremely helpful.
Accommodation was variable, but as it was the "affordable" tour option I did not expect too much. What did surprise me was the high quality of included meals, especially the dinners. The tour comprised mainly retirees aged in their 70s and 80s, and the bus had 45 passengers, all of which may appeal to some potential travellers but not others. Note that the single supplement is quite substantial. One piece of advice for anyone going to do an activity in Queenstown, is to check special offers through the site BookMe. I use this site in Australia but did not realise it was active in NZ too, until told by a local tour operator.
For me the main highlights were: adventure activities in Queenstown, the constant majestic mountainous scenery, and strangely, the evening meals. A few things to be aware of, is the the first night 'Welcome Drinks' are not complimentary, which is different from tours I have done in other countries. Also, there is no Wi-Fi on the bus, where overseas this is now included. The carry bags given out were only used by a small number of passengers, and a backpack of the same size would have been preferable.