Day 1 of replacing seed oils with avocado oil:

Oil replaced- vegetable oil, specifically soybean oil.
Initial observations include a drastic change in viscosity. Vegetable oil was practically water compared to the avocado oil, which feels more like pouring heavily used 20W motor oil by comparison.
The smell is also DRASTICALLY different, both at room temperature, and once reaching smoke point. It smells almost... sweeter. It also smells nicer. like, WAY nicer. Damn near pleasant, especially compared to smoking/burning vegetable oil.

No real taste test difference, and the meals cooked with it have yet to be consumed.