Thanks you guy for your great review.

I just came across a big issue that seems to go since a 
many years on all these business laptop without these brands making
any effort to try to solve it and i might be wrong
but it doesn't seem fair to me so i would be very pleased if you
could add that up to all your future tests and inform the willing
purchasers of this kinds of wonderfull products. The issue is about
replacement composants and some whitelist that no one seems to
know or talk about until you need to fix your computer. it seems like you
cannot upgrade your computer with better no brand official wlan or wwan
cards if the one in your computer doesn't work propely for some reason
you need to spend 130~250 $ to get one from the brand which might be
even least powerfull than a 30~50$ one that you can find by yourself.
And this might go with others composants i don't know, may be next will
be the hard drive, ram...
Greed seems to be good for most of these brand and we will be glad to
see which one are more friendly costumers. So we can make our choice
knowing how we are going to spend big or not to upgrade after the purchase.
Got my issue with a thinkpad lenovo but i discovered that they are not the
only one using that ""whitelist"" thing.

Thanks you very much...from france and keep the great work.

Great in depth article.  I will primarily use this for spreadsheets and lite travel.  Occasionally I will take a break with a game.  Than you for corroborating my many years working with the 820G1 and now buying an 820G4.  I wanted something reliable, rugged, not too heavy and not flimsy.  The cost is pretty high however for the performance.  I think people are buying into the warranty, reputation and build quality.