My fiance and I took private salsa lessons with Gustavo at Broadway. The lessons were decent but more than half of our classes have been cancelled/rescheduled on us last minute!! Also, the private lessons are not that "private" because there are always others in the studio practicing at the same time as well (sometime playing non-salsa music).
Gustavo tried to sell us multiple times on additional private lessons after only a couple classes... thank God we did not fall for this "special offer"!
As you can imagine, the experience was very frustrating! I would not recommend this place. I am sure there are much better options in Vegas.