Only if I really liked the game's mechanics since most of the time it's going to be nothing but fighting and more fighting. Most such dungeons suffer from a dearth of save points and 100 floors of the same thing gets tiresome even when the locals aren't tearing you limb from limb.
Even though The Abyss in Wild Arms 3 is insanely long and exacerbated by the absurd HP in both phases of its mighty boss, I liked the game enough to see it through, same for FFX and the Omega Ruins.
By contrast, after completing Star Ocean 3 I took a few stabs at Sphere 211 (201 consecutive floors!) and said 'screw THAT'. Most of the Tales games are pretty horrible about this too, most of them mixing frequent random encounter rates with tough puzzles and having at least one normal enemy in there who is, quite simply, unbeatable. Said enemy is usually small and innocuous, or even comical like the lethal Sootie in Star Ocean 3.
Interestingly, I think I may have played the game with the first such dungeon ever to exist in my youth- Final Fantasy Legend 2 aka SaGa 2, which has a world called 'Nasty Dungeon'. Exactly what it says, but amazing gear on the bottom floors.
