Be careful with it - mine was stuck as well, and when I pulled it out, the power cable snapped off the plastic round corner on the inside, and the power cord also gets jammed between the top/back of the screen and the top lip of the case, making it an interesting exercise in force trying to get it out again.
I ended up snipping the small plastic tie that holds the power cord to the slide out so I could reroute the power cable so it slides into the case with the screen, instead of bending up and jamming.
Mine was also covered in grease, from the plastic lock at the back, it's also offset to the left a bit, so one side sticks out further than the other when it's closed.
Not to mention that it arrived the same day that the cost of the unit dropped in price, and I still got charged the full previous price, with no mention of the option of a motorised one.
Not happy