I don't think they drug itself is disgusting, not at all. I do think a lot of the culture around it tends to be not-so-friendly, but this is only by what I have seen, and the people I know who use it. Of course this doesn't relate to all meth users.
I just personally hate the drug. I gain nothing that I could take with me in the long run, not like MDMA, LSD or DMT would. All I feel is a gritty, tweaked kind of euphoria, which just doesn't give me an overall feeling of well-being that other drugs do. And after it, well I feel completely drained and just generally shit. Not my thing.
One thing is for sure though, a meth addict is the last kind of addict I would want to find myself face to face against in a dark alley, if that is anything to go by.