Older Beholder
Hero
I love Sigil. I ran a few adventures there in 3E (converted The eternal boundary and some adventures from the Well of Worlds)
It is heavily tied to the Factions, this is a positive or negative based on how much you want to use the factions. Not that you couldn't run a campaign in Sigil without them. I just like the way they each have a function and a headquarters in the city.
Mostly I liked how inspirational the setting was... even to this day I still have ideas based on it, for example a couple of weeks ago I had an idea for an alternate Sigil that's built on a giant chandelier, here's a sketch of the idea...
It is heavily tied to the Factions, this is a positive or negative based on how much you want to use the factions. Not that you couldn't run a campaign in Sigil without them. I just like the way they each have a function and a headquarters in the city.
Mostly I liked how inspirational the setting was... even to this day I still have ideas based on it, for example a couple of weeks ago I had an idea for an alternate Sigil that's built on a giant chandelier, here's a sketch of the idea...