Lenovo PC built with inferior parts

Don't buy Lenovo products because the warranty is meaningless. Why? Because the warranty is handled by Partserve, Lenovo agent suggest that I take it to them to upgrade the Ram, Partserve response was that there was nothing wrong with the Ram, but the hard drive needs to be upgraded, if I upgrade the hard drive then what, why have such a good looking PC with such inferior parts, its a intel Core i7, ideapad s145, I think a pentium 1 works faster.