I guess it's not a bad textbook if you're just starting to learn calculus, as you're just learning primarily the methods used and their applications.Can someone explain why certain people look at Stewart's with disgust? I honestly don't know why, as this is the only book I have learned from thus far. Have I been robbed of a proper foundation in calculus by using this (university chosen) book??
But if you're looking to study the theory behind all these techniques, then you ought to look for something else.