The location is spectacular. You overlook a flood plain graced by Puku (obviously), elephants, and other fantastic creatures. The camp feels quite remote which gives it a bit more of an adventurous feeling than other accommodations we have stayed at while on safari.
The customer service is really second to none. The staff go above and beyond at every opportunity. At times it feels a bit contrived (i.e. when they greet you coming back from a game drive), but the effort is truly commendable. Levies and his team do a great job.
The game drives are phenomenal. We have had great guides in other parks like Chobe, but I would say Lameck is the best we have ever had. He had a depth of knowledge of the park and animals, but is not in any way overbearing or cheesy.
You will be incredibly well fed with your various meals and tea breaks. The vegetarian meals were fantastic, even if the variety is a bit wanting. Breakfasts were also a bit on the plain side.
The accommodations, though rustic, are still quite luxurious given the location. It is critical that you know what you are looking for in the experience. If you want a refined, hotel-like experience, this might not be your best option. That being said, the tents are ridiculously well furnished. For bathing you have the option of a bathtub, indoor shower, and outdoor shower -- that in of itself should qualify as luxury in my book.
Also keep in mind the time of year you are visiting. We visited in December during the rainy season which coincided with a large number of insects. This inevitably resulted in a large number of insects getting into the tents despite the staff's best efforts. I doubt this is a problem during the dry season, and certainly did not ruin our experience. It does give you a very slight taste of what the early explorers endured. But ultimately it does keep this from achieving a 5/5 rating in my opinion.
If you are looking for a bit of adventure with a giant safety net of luxury, then Puku will not disappoint.