The Aspire SW5 has an Intel Atom processor family which is better than most laptops of a comparable type and age to it. Most 2 in 1 laptops that have been available for a comparable time to it have an Intel Core i5-5xxx processor family.
An Intel Atom processor family is actually the worst processor family amongst all similar spec portable PCs that have been available for more than a year.
An Intel Core i7-4xxx processor family is the best processor family across similar types of portable PC.
We compared all the other portable PCs that have an Intel Atom processor family to this laptop and we think the Asus Transformer Book T100CHI, and the HP Pavilion x2 (£229.99) which is cheaper is also worth considering.
If you would prefer a notebook PC with a better processor family then you might also want to look at the Lenovo Flex 2 (Intel Core i3-4xxx).