I have a Toshiba Satellite 15.5 in and also ny granddaughter has one. Both have 500 gig HD, 4 gig RAM, 5i processor. Very good and reliable. My local repair shop reccomended Toshiba and Asus as easy to get parts for etc. I think the 15.5 in screen is a good compromise between portatbility and clarity. I use a desktop for photo work, however. Bought one at John Lewis and the other (pink!!) at PC World. I did resize the partitions on purchase to 100 Gig system, balance (except recovery partition) as data, as it came with a 50/60 split in partition.(W7,64bit). My wife uses the touchpad; I prefer a mouse.Keyboard OK.
iMac Pro review