The service of dell is very good . it work perfectly . dell vostro 3558 is very good to running the system for more time in a day.it is a better quality system than other as its cost . it is better to run more applications at a time.its cast is very low as its feature and durability.I purchage it about 1 year ago I am fully satisfied with its good services.I advise to buy it beacause it have a low cost .