I joined a Gnomeregan group on my Rogue in WoW Classic. The group was pretty good, but ultimately unsuccessful. Warrior tank, Priest healer, Rogue (me), Mage, and Warlock. We did quite well up until the final hallway before Mekkatorque. The one with the Dark Irons.
We accidentally pulled too many and wiped. We rushed back in and got past the respawns to the hallway. This time, in the middle of the fight, the mage accidentally blinked into a group of enemies and pulled them. Another wipe, but this time the priest had Soulstone on him. He ressed us, but he was low level and got too close to enemies and they came and wiped us for a third time. At this point we gave up because of all the respawns.
I did get a couple of quests done, but I still have five or so left. This is the point where finding a group becomes a lot harder, especially as the main wave of leveling characters finished so long ago. Part of me feels like it would be faster or better to just ignore dungeons and focus on solo quests.