Have had the 23 and 56 in my bag for a couple of years now and always felt like I was missing something in not having the 50mm FOV.
I shot a Canon body with a 50/1.2 bolted on it for several years, so I always framed things with that FOV in mind. Ultimately, when selling my Canon kit and moving entirely to Fuji I felt like having a prime that was a little bit wider wouldn't hurt especially when paired with the 56mm for portrait work. It's a gorgeous piece of glass.
That said, I recently caved and picked up the 35. The way it renders is really something special and IMO different enough to warrant having a space in the gear bag.