I have been using the Optiplex for over a month.  I do a lot of ms office multi-tasking. this machine is fast  [excel, ppt, docx, pub, outlook].  I have done some photo editting [psp 8].  and it performs well also.  If you research this model, it is a couple of years old. However the specs are very close to, or better than many current desktops.  I have owned about 5 dell devices and they are quality products.  the seller is fantastic also.