First of all I would like to say that the booking procedure was fast and easy, also the reminder received beforehand about things to keep in mind was a very helpful thing.
Unfortunately the Tour itself went completely wrong (and it was not the first time we did an organized tour). After having lots of email discussions with Acacia, but not having received any helpful replies, I would just like to present our experience in this tour here:
We booked an 11 day guided Camping Trip from Durban to Cape Town, joining the tour that had started some time ago in cape town, going to victoria falls, johannesburg, Krüger Nationalpark, etc.
Our guide was not supposed to be on that tour, but had to guide it as the originally planned guide for the tour could not do it. It was the first time for him to do this particular tour, so there was no experience / he was not familiar with the itinerary / places / timings.
Timings were done poorly (first you have to order food, suddenly we run out of time so order has to be changed for takeaway but then you have time to eat superfast but have to wait for the bus to be ready...)
People skills were not there, every individual in the group was treated the same no matter which age or background - people helping a lot would have to listen about his complaints about people not helping but he would never address this complaints to the corresponding people.

Arriving and leaving places was annoying for everybody as he would get extremely stressed (and would just shout commandos around).

Most if the time our guide was busy with his mobile phone - we actually did not find out so much about places we visited or animals we saw.

In case somebody had a complaint he would take it personal instead of listening - even if it was the entire group and would ignore you for the rest of the trip.

For 13 people we would have 4 different itineraries with different food plans - what caused discussions. We ended up paying for dinner that actually was included in the plan.

Foodwise...there were in total 3 days of good dinner.
Lunch was 80 percent do-your-own-sandwiches with unhealthy bread, grinded cheese and ingredients you would not buy at home.

In the end the tour was not a guided tour - it was a transport from A to B being organized and (unfortunately not good quality-) food being provided.

I found the trip covered a lot of great areas and does all of the key spots that you would want to go on however I would say that not all the activities are as you would expect when you get their e.g. they arrive later to the Dune 45 then they imply to save costs on accommodation and the Etosha park you need to get your own game drive if you really want to see the good stuff as the local guides are professional and know where everything else is.

I would say that the how good it is also luck of the draw on tour guides, I found that I had one amazing tour guide (eva) and one terrible one and it actually affected part of the tour really negatively.

I just got back from the Desert and Delta Express Northbound (12-day) route and I am happy with the tour overall. I enjoyed the camping and the tents and campsites were all good. You also could upgrade at most places if you ever needed. Breakfast/lunch was very basic and got a bit redundant (cereal/toast/sandwiches), but dinners were delicious usually something grilled at the campsite! We did make plenty of stops to restock on water and snacks. This was a participation tour, and we all rotated jobs between packing the truck, cleaning the truck, washing up, and cooking. I liked pitching in, but of course you have those that don't. Keep in mind this is an overland tour so you will have long days in the truck (with no a/c), and you just have the bare minimums! We did a lot of game drives and saw plenty of animals! This was always fun, but you also must have patience in the hot sun! Our group had 15 people and good mix of 20-somethings. A few couples, but mostly solo travelers. Also with this company, people are coming and going depending one their route, so you may or may not be with the same people the whole time. On my particular tour, I joined a group from Cape Town that had been together a week. The highlight for me was ending in Victoria Falls and whitewater rafting on the Zambezi. This has been on my list for quite a while and it did not disappoint! Highly recommend! Overall, the tour went as planned for a budget-friendly tour and I would recommend as long as you know what you are getting yourself into!