I must be old fashioned, I use good old fashioned saddle soap in the bar. All you need to apply it is a moist sponge. Apply it and then rub it up with a soft cloth. Have used it on all my leather for over 40 years and it always has done the job it was supposed to do. Last three vehicles I have owned with leather interiors have never seen anything but saddle soap. Kept the leather clean and supple. It works and it is cheap. It is great for "fine" leather. Ask any cowboy or horseperson who owns a leather saddle, briddle, boots, chaps or other leather products.......
