Fuji tran films are usually more saturated and often show more contrast than their Ekta rivals. And if you are prepared to pay for a Cibachrome style pos/pos print, the results can be amazing.
But as others have said, you have much less exposure latitude so you'll be wanting to fill, or at least meter all your shadow exposures if you want to retain detail. If you're working with people in tricky lighting, my method was to shot the whole roll at a set exposure, then at the lab clip-test the first frame, then push or pull the remainder of the roll. Problem there is you use more film, and basically double the processing cost of each roll just to be sure the best pose/composition etc matches up with the best exposure.
And on the neg side I'm pretty impressed with films like the 160C. I don't shoot tran much any more...
With proofing, I lay the negs out on a scanner and making a quick digital contact proof that way, instead of paying a lab for proof mini prints.