How long can a campaign last?

Good afternoon, so despite owning a physical copy of Ironsworn (and the asset cards) I've yet to try it. I've got sort of a stable of players and I'm looking at offering up two games starting in the New Year, I'd like one to be Ironsworn and have a couple of questions.

  1.  I see a lot of actual play experience on this subreddit and other places but it's all been primarily playing solo. Has anyone tried running in a more traditional manner (a single GM and a few players) if so how'd it work out?
  2.  Do you feel like you can do a fairly extended campaign of Ironsworn. I *love* Pbta (which this is sort of an off-shoot of) but *some* pbta games aren't great for playing an extended style of campaign. My instinct tells me Ironsworn will work fine, but just curious of any confirmations or other opinions?

 Anyway, thanks in advance for your input!