I wish I hadn't bought. 4 main problems with this machine:
* ports
* dock
* chassis
* display
the port layout is tight. bad enough a 15" business class machine doesn't have a native Ethernet port, but the layout of the usb ports so close to each other causes conflicts when using the usb-ethernet dongle (which gets amazingly hot, i've tried 2), my usb-4G modem, and a usb-to-serial adpter- pick 2 which you wnt to use since the latter 2 don't behave on the usb 3 right side ports (which again are too close to eachother).
usb3 docks are not in the same league as a real docking station. delays in graphics and periperals abound. drivers/bios updates didn't help. i've had two 3800's as the first was a dud, both were awful on the usb-port replicator
the chassis is a joke, it's so flexible when you actually try to use it on your lap, the touchpad goes bonkers, either not working or having ghost clicks or jumping pointer syndrome. even typing on a lap-desk when tilted can do this. (and no this isn't my palms touchign the touchpad) this is just chassis flex. my first 3800 had a doa wifi card, dell support replaced/repaird it on site, 2nd visit to do the same they replaced the mainboard, then the touch pad was off and wouldn't click. we ended up doing a full unit return withing 5 days. so the 2nd unit didn't have the wifi problem and killed touch bad, just the othe problems in this post.
display - too shiny. i regret thinking "maybe this won't be as bad as the last non-matte screen i had..." nope. bad idea. and it ghosts, alt+tab between screens leves a plasma-TV like ghost image for a bit of time.
oh, almost forgot - the chssis is so flexy it wakes the unit up from sleep in my briefcase, nearly had a melted system. so i've had to go to hibernate instead of sleep where the flexing and space-bar 'tapping' of a closed laptop can wake it. now one out of every few hibernates hangs. the machine comes back on with usb/wifi/keyboard frozen, so a hard reboot is required.
oh and battery life is very 2010.
as an IT pro this thing is hurting productivity and it's out, back to a thinkpad for me (i had 3 before this one). this is a good thin laptop for sitting at a desk, without a docking station and looking good, but not for much field work, too flimsy and not rugged enough for anything else. 4 cores and 8GB of ram and self installed SSD don't matter when you can't use it.