Personally, I don't mind using the @ however I normally use Latino/a and Latina/o in my writing and alternate the ending to coincide with the proper ending as if I was writing in Spanish. So example Latino/a Theology is such because in Spanish it would be teologia latina. a Latina/o course ends with the o because in Spanish it would be un curso Latino. The use the alternate ending of o/a and a/o helps us find some gender balance without giving primacy of place to one gender over the other. Those who use the @ are trying to do the same thing.