I own the talking deluxe version of this from GamingHeads (limited to 350 pieces), and to be honest I wish i'd saved the cash and bought this version instead as the audio is extremely quiet and the sensor requires you to be AT MOST 2 inches away (anything better would've affected the aesthetics apparently). This product is identical except for the talking bit. Very good nicely detailed, but be aware some people have experienced with chips on the product.
Customer service from Gaming Heads is EXTREMELY POOR, they don't respond to facebook comments (you can read how bad they are start 14th March and work backwards) and have even admitted to having filtered support calls as spam. If you have an issue don't expect it resolved through them.
So Pros :- Extremely Detailed Is very weighty and feels substantial Looks awesome next to other Portal memorabilia Comments on the actual box are very funny.
Cons :- Motion Sensor is very poor (read very very poor) Issues will NOT be resolved by GamingHeads