The rotary nozzle works well to clean a fouled deck. The power is just enough, but that's the job.
The adjustable nozzle is good for cleaning a car, but with one caveat: it's just a jet "flat" whose power is adjustable. But even at max power, it's just enough to clean a car ... so the power setting is rather gadget, unless you want to clean fragile things. The lance "pencil" / "flat" as a few years ago was more versatile.
I had doubts on the "surface cleaner" (the big yellow thing), and in fact it is very good: it scoured almost as much as the dirt blaster, and it makes no splash. Very good on a balcony not to mess rails, for example.
In short, I am very happy with my purchase, especially as the price is reasonable.