I think low-end Lenovo's (especially older models they did right after acquisition of IBM thinkpad division), are not as refine and of the same quality as their

I think low-end Lenovo's (especially older models they did right after acquisition of IBM thinkpad division), are not as refine and of the same quality as their Thinkpads T-Series... I bought an R series Lenovo for my sister, a few years ago thinking that the only difference would be added size and weight... boy was I wrong! But now I have a newer Lenovo L512, and they redeemed themselves...