I've been working as a patient transporter for 6 or 7 months and it's been mostly a good experience. The work itself is no fun- i.e., getting that 400 pound vented comatose ICU patient onto the CT gantry and then wheeling them back to the ICU gets old after a day. But, the peripheral experiences have been positive and the pay ain't bad ($20/hr to start at my hospital). I'm in and out of every department, have watched a few surgeries, followed MDs into the cath lab when it was slow, and generally seen a lot.
I'm also based in the radiology department so I'm getting to know a whole lot about radiologic procedures- what they look like, what to order, how to sort them for the radiologist, and even how to recognize a few basic diagnoses (kidney stones/masses on a CT, for example). There's not as much interaction with physicians as I might like and you're pretty much on the bottom of the totem pole, like same pay grade as cafeteria workers, but if it's only a for-now gig then sure, go for it. There's tons of patient interaction and you get to know the sicker ones pretty well (which can be tough when they die, though) so stress those points on an app. I've had my fill and have given notice in order to ramp up the volunteering but for paid work it's probably almost as good as an ER tech or CNA.