I couldn't find out much about a Marconi slicer   other than it is made in northern Italy and is sold by several companies in US UK AUS and other places    When purchasing a slicer or any other long term cuting equipment   ask yourself    Is it strong enough to easily handle your busiest days without straining ?  How many hp. is the motor ?   Belt drive or gear ?  If it is gear   are the gears metal or plastic ?  how long would it be expected to last in your store ?  when it needs repair  are the repair parts readily available  or  do they need to be ordered ?