Seems like a decent machine. The reviews on the Argos site look promising with 4.5 / 5. The reason why I think it's a good deal is that £92 cheaper than the Argos site where I was just about to orer it from.
"The Indesit IWDC6125 washer dryer has a 1200rpm spin speed with a 5kg drying load. This washer dryer features a class 'A' washing performance and a class 'B' energy efficiency. Other features include superinse, final cool cycle, time saving, easy iron and woollen wash."