i'm using black magic leather cleaner on my interiors. it makes the leather very squeeky when u sit in it and it brings back some smell too. i kinda like it especially after a hard days work, the smell of the leather seat just makes ur day. also, it last a bit longer than the permaglass leather cleaner foam type. i haven't try the other range of products though.
my car care products is a bit rojak though. KIT car wash, permaglass interior cleaner, black magic leather care, featherlite car polish and cap ayam polishing cloth.