The ThinkPad series is likely still one of the best quality built laptops around (not sure if it is at the same level prior to IBM selling it). Tech support for the Thinkpads is separate and distinct from Lenovo's consumer brand laptops; like the IdeaPad; and is likely one of the best tech support service you can get.
Lenovo's consumer oriented laptops seems to be above average for both build quality and tech support. But pales in comparison to their business oriented laptops.