I have an Asus (actually badged as Littlebook, bought in Switzerland) which is about 7 years old. As solid as a rock, excellent build quality but heavy. It has slowed down a bit as it enters old age but that is more due to the software I think as the applications seem to get more and more resource hungry. It now stays at home to replace my burnt out desktop. It has loads of USB ports and has done good service. I have no idea what model it is!
I have W8 on my new Lenovo and don't like the o/s at all.