Summary: I had three of these (one regular, two ultimate) and I binned all three after roughly a month of use. (I live in south america, shipping cost for warranty exceeds the unit price, they were not bought from Ebay.) All three keyboards exhibited the common "double tapping" problem on two completely different PCs, making them unusable.
Died after 2 years and good care, company won't stand behind it.
22 October 2013
Summary: UPDATE: I've found that this keyboard DOES work on my Windows 8 machine. It quit working on 2 different Windows 7 machines at the same time. One belonged to my job and is pretty locked down, so I don't even have access to make any major changes on it. This tells me that something about Windows 7 may have changed via an update - I moved the keyboard between the two PCs regularly.
Summary: I can not remember ever getting ripped off so bad. The "g" key alternates between not registering at all and registering 2 to 4 times. Hitting the spacebar can get you anywhere from 1 to 3 spaces. There are at least 2 other keys that do not always work right as well. This is the worst keyboard ever built and it is expensive. Despite the fact that the mouse I bought from the same company seems to be working great, I will never buy from this company again.
*WARNING* Razer Cloud Account and Internet Connection Required.
12 November 2012
Summary: After downloading Synapse keyboard software from Razer, you'll be greeted with a Razer Cloud login request. If you don't have an account you'll be forced to create one that requires an e-mail address. Microsoft .NET download is also required for your keyboard in the cloud (great idea!). But they totally hooked us up with an online\offline mode <sarcasm>. WE ALL NEED TO STOP SUPPORTING THIS TYPE OF BS. It's just a keyboard.
Summary: I highly recommend against purchasing this keyboard. I purchased it and used it for a week or so before returning it. First of all, the driver software *requires* you to sign up for an account with Razer's cloud service just to use the features of the keyboard. There is no other driver that does not require constant Internet access. Incredibly lame. I e-mailed them about my disappointment and they responded that their cloud requirement is an "amazing feat".
Summary: Sadly I've joined the ranks of people to have a defective keyboard... Straight out of box and the 'L' key does not work. All of the other keys work fine. Pros: The keyboard feels pretty good to type on The idea of the macros is cool (although I have not used them yet) Cons: the 'L' key does not work properly Guess I'll move on to the das...
Summary: Howdy all, I'm sad to say I was suckered by Razer's claims of "Professional quality" and other such claims. I'd received a Blackwidow keyboard as a christmas gift in 2012, brand spanking new from a major retail store. Just after thanksgiving 2013, the keyboard started exhibiting issues. Keys are double typing, in game it sometimes takes 3-4 presses to get the ESC or function keys to even respond. This isn't my only experience with Razer's so called quality, either.
Summary: At first I loved this keyboard, the mechanical switches felt amazing, and overall it was a solid board. One reason I chose to purchase this keyboard was due to how much longer mechanical switches last compared to regular keyboard buttons. Unfortunately Razer does not build keyboards well. Five days after the year warranty expired the keyboard suddenly just stopped working. It would not turn on (I tested multiple computers), no response at all.
Summary: I ordered this to use for the new versions of Battlefield and Call of Duty. It was shipped directly from the manufacturer, but despite the over abundance of packaging, it came with 8 broken keys. Unfortunately, the design allows for a little plastic tab on the bottom of each key to attach it to the keyboard, and 8 of the keys had broken tabs. Needless to say, I sent it back and bought a Microsoft Sidewinder instead..