Doing it solo or in party matters. If you're doing it solo the monsters are scaled back to make them easyer. So it might be harder to complete this dungeon in a party.
Getting to kabal
The first part of kabal is pretty straight forward. Just hit and run your way through the route.
Just mind the fire blasters. They will kick you from over the edge and so killing
Also mind that your companion will probally die during the run, so either resurrect them at the final boss or assign the hotkey for quick summon.
The final monster, kabal can be tricky to kill. A straight forward hit and run wont work as it is immune to normal attacks.
You need tot get him vunurable. you can do this way
In other words:
You're "supposed to" run the fireball chained to you through the boss. The problem that most player encounter that there's almost no time between the moment you get chained and the moment you die.
So the short answer is "bring a friend because you ain't doing it on your own."