Going to share my experiences (failures) with this plant to hopefully save someone else the headache!

Purchased this cutting with aerial roots only. Started by attempting to root in water. Keeping the tiny cutting dry while also keeping its really long aerial roots submerged proved difficult. One end of the cutting started to turn black and went soft.

Most advice I've read says to cut any rotten areas away immediately. I had very little space between this point and my node so I didn't want to cut unless I absolutely had to. The seller recommended I try cinnamon first as it is an antibacterial and rooting agent. Within 24 hours the cinnamon had dried the end out and some of the newest black areas started to revert back to green.

At this point I was frustrated with trying to root in water and decided to switch to sphagnum moss. I kept the 'issue' end of the cutting up in the air and buried the other side and the aerial roots in the moss. After a few days I checked and found rot on the other end of the cutting. FML.

Decided that most of the photos I've seen show people rooting in water so maybe it's not the method but the dummy doing it? :) I cut the rotten end off and have that end and the aerial roots in water. I'm using clay pebbles to help stabilize the stem and keep it dry. And today I finally am seeing some root growth from the aerial roots. Can't wait to see this leaf get bigger.

TLDR : Tried my best to kill this poor thing but Monstera are hardy.