I repotted this one with a friend during a one to one session last week.
It had been in this pot for a long time and had been potted in peat by the previous owner. When we got it out of the pot the smell was grim, a stale rotting smell. The pot was also holding a lot of water. There had been no mesh over the drainage holes and we found holes leading up into the root mass and a few slugs gorging themselves.
This is it much later and into a smaller pot.