As a BF3 player, I'll give you a scenario, as it stands now, there are only a few servers (locally) that I play on (I only play Conquest which narrows down the number of servers I can join). One of these servers is an iGame server, so I select the server and I'm placed 1st in the queue (cool story, it's not like I haven't been in 1 before), about 7 minutes go by and all of a sudden I'm 3rd in the queue

, and endure an 15 minute long wait before deciding it's time to move on after only gaining back the 2nd place in the queue. I browse for vanilla conquest servers with an adequate population size* (I couldn't find any aftermath servers that were populated), this search eventually leads to the Do Gaming Metro 24/7 server (which is full), so I decide I might be lucky 2nd time around (boy was I wrong

), select server-> you are now 1st in queue-> 4 minute wait-> you are now 2nd in queue-> 5 minute wait-> still 2nd in queue -> promptly quit.
I eventually decided to play on a few US aftermath servers (dealing with upwards of 650ms of ping), then went back to the iGame, WAGE, and Do gaming servers much later, once the population had dissipated a bit. All in all I spent 30 - 40 minutes trying to play, but couldn't because of queue priority.
Now, I really love this game, but I can objectively say, queue priority is a very crappy/dodgy thing to tout as a feature IMHO. I definitely get where Graal is coming from. I really doubt that this scenario is unique to me.
*
at least 15 players (most of them had 10 players max)
PS: This all transpired this past weekend.