My tour was changed the day at 0640 for a 0730 pick up, despite confirming the day before. The options were to do just mekong delta and get a partial refund or to pay extra to add cu chi tunnels combined tour.
We chose the cu chi tunnel and Mekong delta to swap too which cost us extra 350k but was given at 200k each after discussion, rather than our original tour which included much more including floating markets and a cooking class.
The new tour was 6 hours of driving and not much time doing the tour activities, we rushied through cu chi tunnels, advised we had to tip the local for activities we payed to do in the tour (local singers, boat operators etc).
The tour guide was OK he took pics for us and sang some songs but that was the only highlight. We followed other guides on the day from different tour companies who explained more on the cu chi tunnels which was great.
Lastly, I posted my review to only get messages by 4 different people from this company on whatsapp to ask why i posted negative feedback and to remove my review (manager, customer service, booking operator and guide). They offered a refund which I declined as that's not why I'm writing this review. I had to block them and ask the manager to ask his staff to stop messaging as they got nasty. I have upgraded my star rating to 2 due to the tour guide singing for us on the way to the first stop, he was fun.
If you want to do these tours, I suggest you do them separately on different days to get most out of your trip, it is also cheaper to do it separately. The combined package is not worth the time or money.