Tom Ford Espresso Eye Defining Pencil is a deep cool brown, with no shimmer. This is a basic, dark brown eye pencil. The texture is quite creamy, giving excellent colour saturation, but it is prone to smudging; it's best for a smoky eye look rather than a clean, sharp line. It comes with a pencil sharpener.
Blended out. It makes a good base for powder eyeshadow worn this way too, and this is how I prefer to wear eyeliner; I apply it next to my lashline before applying eyeshadow over the top, which softens the look of the liner.Giorgio Armani Smooth Silk Eye Pencil 12 (the Armani is £17 for 1.05g to the Tom Ford price of £25 of 1.36g - £16 per g v £18 per g respectively). If pressed, I would say the Tom Ford is more pigmented and give more saturated colour than the Armani.
There is also a lighter brown with shimmer in the line; Metallic Mink. This is a more interesting shade and I shall probably purchase that at some point (or put it on my Christmas list). I think Espresso is a more useful colour for everyday wear though.