I've been working on the same town for the past 5 hours with my current character and this is by far my longest lasting, most difficult town ever. I started as a level 25 Defender/Paladin and chose to start the town as a level 30 or so and on Fast Pace.
This place has killed me 3 times thus far (only 2 deaths previous). I've killed at least four bosses, and I think a minimum of 12 NPCs have died in town. The town has been attacked at least 6 times, often with an assassin and a scout simultaneously. The Warmaster died once and I've finally brought him back, and the bosses down below keep forming groups of Elites.
I think I might just beat this one soon though... I just need to recruit a new weaponsmith so I can turn in a mandatory quest...
EDIT: Put some screenshots from this town in a Photobucket album