Does anybody out there have one I need to know what I'm expecting I'm used to windows xp and have no worries with windows 7 I'm worried about long term use and reliability can anyone help me?

http://www.qvc.com/qic/qvcapp.aspx/view.2/app.detail/params.item.E209217.desc.ZT-Affinity-7340Ma-AMD-Quad-Core-1TB-22-LCD-Desktop-with-Win7#BVRRWidgetID