I used to sell and manage a large leather furniture retailer.

My opinion of leather is its not suitable for furniture, but if you want leather (which sticks to you when hot and makes you sweat and cold in winter) you need to be aware that there is a big range of leather grades and suppliers.

Unless youre paying mega-bucks for it, its probably come out of China and they have sourced it from the cheapest leather producer.

Quality leather is from NZ and South America (not Auzzie leather which sadly is rubbish) and usually comes out of Europe.

What do they use in cars and RV's???? The cheapest Chinese sourced leather

If you have leather, you do need to condition it at least twice a year. It is dead skin and will crazy crack - which wont stop once it starts.

Use quality conditioner (not spray stuff from supermarkets) - it should look like quality body conditioner that ladies (and smart guys) use to keep their skin supple. Use a quality cotton rag to run in - leave a couple of days to dry off (don't put it on too thick otherwise it will not dry and leave streaky marks - try a test spot to work out how much to put on). Buff the leather when dry. Don't sit on wet leather conditioner - it will stain your clothes and may leave permanent marks on your leather