Most times, I have never had an issue. Once however, we did. It seems the the 3 stalls at the comfort station were in use when we got there. (Me and my Daughters BF). One stall opened up after about 15 minutes. The DS's BF graciously let me go first. Not thinking he would wait long for another stall to open up, I didn't rush. I thought I heard one of the others finish, but after my about 10-15 minute shower/dry/change I came out and he was still waiting. I felt bad because if I had realized it I would have hurried up a bit more.
The other 2 stalls were STILL in the shower after my DS's BF came out of the stall too. AND they had the hot water on full. How could I tell? All the steam that was FLOWING out of the top of their stalls. So even after we both got out, shaved, and finished cleaning up, it was a solid 30 minutes we were there and they were in the stalls before we got there. I like a long shower too, but that was just downright rude.
While I think this was an exception (as it's the only time I had an issue like this), know that inconsiderate folks can make a wait a bit longer. I typically had less issues with the showers than I have with the Washing machines.