Pros
This place is all about dazzling people on a superficial level and that has its appeal, for a limited period of time. There are some exceptionally talented people who work here. If you're on the right project you learn research, prototyping, and presentation skills that you wouldn't learn at a more traditional engineering shop. Appealing combination of design, engineering and invention that you won't find at many other places.
Kontras
There is a cult of personality at this place around the company's leaders that suffocates the ability of senior-level technical staff to advance in their careers. Abuse and strong pecking order are a part of the culture here. Be prepared to work all-nighters and then get yelled at the next day. For junior folks, you won't find good mentorship here. There is almost no set of interests someone might have that would lead me to recommend working at this place. If you want to do applied research, work at a real R&D organization like SRI, Microsoft Research, etc. If you want to build stuff, work at Google, Facebook.