These things are incredible.  I've had non-stick cookware for years but never understood how good it could be. Even brand new PTFE based non-stick has nothing on these. Eggs cooked dry that would stick somewhat to a PTFE pan just slide off - it was actually difficult to flip them for over-easy because they kept sliding away from the spatula!  They are extremely well constructed from solid aluminium and the handles are great at keeping cool.