Tesco Washer Dryers are a great choice because they are always low priced and come with a load of extras you'd expect from Tesco. If you're looking for stand alone or integrated then having delivery or local pickup with Tesco should make it easy for you once you've decided on one of the brands like Hotpoint, Indesit, Beko, Hoover and Candy.
It's always best to get a washer dryer from Tesco with at least 1400 rpm spin speed and anything upwards of a 8KG capacity. Anything less than this and you'll certainly regret buying it unless you live along and don't mind the extra drying time.
If you have trouble deciding which washer dryer to buy, or you have a short list and need to make a decision, check the energy rating and the manufacturers warranty.