I found this outstanding and perfect in a warm afternoon. I hate the overly sweet tequila cocktails. You can taste the tequila. I would agree that you could use reposado if you wanted a stronger tequila taste.
This is very accurate to the drinks I have had in Mexico made for the locals and not the tourist. Cooling and resfeshding which you need in the hot Mexican sun.
Forgot to mention. This is another cocktail that you must use the best quality you can afford. The tastes are pure and one low quality ingredient can ruin this beautifully balanced cocktail.
Try doing 1.5 ounces of reposado tequila, 1/2 ounce of a good quality grenadine and cream de cassis or if you don't have cassis use creme de mure, 3/4 of an ounce of lime juice and a drop of angostura bitters and shake it all together and then top with club soda and a pinch of salt or Topo Chico. This variation comes from Anders Erikson and I found it to be delightful.
This is very accurate to the drinks I have had in Mexico made for the locals and not the tourist. Cooling and resfeshding which you need in the hot Mexican sun.