Here is a margarita variation with a lot of character. The combination of pepper spice and the sweet-tart pineapple is almost always a good one and with the tequila behind it, the flavor profile becomes delightfully complex. The citrus is used to bind these contrasting compliments and is vital to creating the best drink. That is why fresh lime juice and the smooth taste of Cointreau are specifically called for here.
When the flavors are kept in balance this is an extraordinary cocktail. However, it can easily become disastrous if you become overzealous with one of the ingredients. This is particularly important when using hot sauce; add it slowly.