Dell's customer service is one of the best in the industry. Especially the online customer service website. There you will find frequently asked questions which usually solve 90% of issues, if that's not enough, there's a live chat with a customer service representative, who are usually...
Like with most System76 products, the build quality for the Lemur is rather poor, especially when you compare it with other laptops at this price point. The plastic feels a bit cheap and flimsy and is not as durable as other laptops.
The extremely thin chassis is a drawback as far as heat management goes. Even a relatively simple activity like streaming HD videos will overheat the laptop and put the internal heat at about 105 degrees Fahrenheit which is 10 degrees higher than the 95 degrees "comfortable" threshold.
The 2014 model removed the caps-lock key and moved the home/end keys into it's place. It also has an "adaptive" key system that messes with the function keys and changes their function based on what mode the keyboard is in. They also killed off the clickable mouse buttons on the trac...
The Envy 13 has a hinge on the back which gives the laptop a slight extra boost in keyboard height. This puts the keyboard at a much more comfortable typing position and reduces RSI and finger-fatigue from extensive periods of typing.
One of the bonuses of having a larger body is that you get to use good speakers instead of some small ones stuck underneath the laptop. They are also angled toward the user and the sound is crisp and loud enough, even though it lacks some bass.
It lacks the option to have a 4K display. While not a deal breaker, it's a shame that a laptop with a display as good as Oryx Pro's does not have a 4K option which would also be a great plus for gamers.