I waited 1 hour 33 minutes in queue on my DPS yesterday... I got into the dungeon and was in a group of 7 players - and I couldn't even leave the group. Each time I tried to leave - it booted a player out of the dungeon, but not out of group... we ended up with a group of 19 players (only 4 of whom were allowed in the dungeon).
I now proceed to queue as a tank/dps (despite the fact I'm not a tank) just to get into normal dungeons faster (I wouldn't do this with a vet dungeon of course because you may get a dungeon where you actually need a tank). I did get kicked from a group for doing this though... a group of VR16 Daggerfall players booted me from normal Spindleclutch.. I'm Daggerfall myself, and sad that they were so worried they couldn't get Spindleclutch completed with 3 of them at VR16!!
I also hear we are going to be punished with a 15 minute wait to requeue if we leave a group? If this is true, I surely hope Zenimax fix the glitched groupings of 7 people... otherwise there will be a LOT of infuriated people sitting around twiddling their thumbs when its not even their fault.