Its a whole-body-sweat. From the tips of my toes up to my neck.

Its similar to what you describe from your experience with traditional saunas, but I cant tolerate more than 10 minutes in a traditional dry sauna.

I should add that before getting the FIR sauna, I never used to sweat at all. Ever. Even in the hottest weather.

After buying the FIR, it took me about a week of daily use to start sweating.

After 2 weeks, its taking me about 30 minutes to start building a sweat.

So I would say for me that its definitely working, but you might experience different results in a different timeframe.