$1299.99 and they only give you 6 GB of ram? I'm not impressed by the 32 GB mSata either, not at that price because those drives are selling pretty low now and many laptops come with a slot for an extra drive to pop them into. I know for a fact that a laptop can be had (3rd gen i5/16 GB ram, 4 USB 2.0 ports/2 USB 3.0) for half the price with more or less the same specs.
The biggest deal on the Dell system is the WLED screen. How's the performance on that and the expected lifetime on that technology? Those kinds of screens aren't too uncommon and it seems like DELL is playing it up to justify the price. But again, there are less expensive laptops with similar or better configurations that also sport similar led backlit screens.
Their system doesn't allow you to choose more RAM. If you're going to buy this laptop you really need to know how much of it the motherboard will accept (the maximum generally ranges from 8 to 16 GB) and if it's possible/easy to open up the box and install it to the max amount yourself, since the website doesn't allow you to add more. I suspect the max is 16GB, but you really should find out for sure. The DELL web page for that system doesn't seem to offer those specs, so you're kind of buying it blind except to know that it's DDR3 1600MHz (which is good). Find that out first.