Looks like decent specs & price for a Smeg dishwasher. (It's priced at £335 including a 2yr guarantee at John Lewis, just for comparison.)
This comes with a one year manufacturer's warranty.
The DC122Bhas been rated A rated for wash performance and A rated for drying performance. You will be able to benefit from this free standing Dishwasher quick wash feature.
12 place settings
4 wash temperatures for different washing needs
12 litres normal water consumption
Half load option for smaller wash loads