Not able to leave zero stars but I would. Worst experience ever. Purchased brand new XPS 9520 with extended service plan and tech support. Have had computer two weeks-discovered it didn’t have the sound drivers installed. After two days on the phone with tech support-they lost all of my files and and failed to install the drivers. Now o have nothing. Now waiting on a usb with the new operating system that they say will fix everything. I have serious doubt. These people are polite and try hard but in the end are ineffective and worse-they leave you with less then you started. It remains to be seen if I return the laptop for a replacement: I will not be reimbursed for lost job time of mine or the expense of data migration and other apps. Would not recommend.