My tranny shifted worse after I got my 30K service. Comments? Damn service monkeys.

 

I can almost guarantee they went with an "alternative" (read: wrong) fluid in the tranny. If you go back and ask them they'll deny it so just get ahold of the proper fluid and do it yourself. It's not harder than an oil change except you need a little $5 pump to pump the fluid back in the fill plug hole.