I saw some in my local asda but they all seemed to be 700W.

Not all these are the same price, depends on colour. I had an argument last week asking how they can sell the same model but just different colour for different prices. Not really a good enough answer back from asda, they just said it depends on what stock they have, how much store manager wants to sell them for! These microwaves are being discontinued so keep your receipt safe for any issues!!

Seems like very small size. I have big microwave now which can still fit a full size frozen pizza and big bowls inside. I threw my old small size one as it could not fit anything inside.

none in my local Asda

We have this microwave and it is spot on!
Only downfall is that the mirrored front makes a perfect addition to any forensics team. It will literally pick up a bugs fingerprint

Thanks, will take a look in my local Asda tomorrow

damn just bought one last week