The monorail has two stops, one in DTD, very close to the DLH and the Rainforest Cafe. The other stop is in Tomorrowland, inside the park. You have to have a park ticket to ride the monorail since it goes inside DL. As far as I know, at this time, you cannot ride it around the loop without getting off. This has something to do with the Nemo Sub ride construction, maybe someone can be more elaborate with their answer! Both stops are working and have been all along. Its very easy to use and figure out, nothing like WDW's with its stops at all the hotels and the TTC etc. This monorail is more of a ride than a method of transportation. Although it can come in very handy to save some steps if you work it right and end your day in Tomorrowland and are staying at the DLH or PP.
Another difference is that there is no standing on DL's monorail, only seating. So once the seats fill up, no more allowed to board. You also have to fold up your stroller and ECCV's are not allowed. The trains themselves are smaller and not as tall.
Hope that helps a bit!