Doing geology research that requires me to travel a lot and be in the field most of the day and i needed a computer with long battery life. I heard about the new vaio Z models with 15 hour sheet batteries. My colleague purchased one in the US but here in the UK stores were sold out or did not have this model. So i did a bit of research on the internet. Read some negative reviews about vizik but also many positive ones on their ebay page and truth to be told i have taken a risk since i never purchased from this company. I was pleasantly surprised about quality of their customer service and fast delivery. I am typing this on my new computer and could not be happier. Since my purchase my colleague has purchased a similar configuration from vizik and is quite happy with her purchase as well.