I've been using Nuud for 5-6 years now, and I love it! I had zero issues transitioning from other deodorants (was already experimenting with non-traditional ones before finding nuud), and I want this company to thrive, so I'll never need to use another product.
When I started using nuud, the formula was very thick, and the re-formulation changed it into a more liquid cream. I mist say I preferred the first formula, but nuud still works the same. I use this deodorant 2-3 times a week, I've lived in the Nordics as well as in the Tropics, and it just works. Of course, it's not an anti-perspirant, so you still sweat. But there is no smell, and no smelly t-shirts either.
Another bonus: a 20 ml tube lasts me almost 6 months, and it's soooo light to carry in any travel bag.
Honestly, I love it and have already converted a few friends to nuuders :)