Summary: This is one of the worst gaming keyboards I have owned. The keys feel mushy on press, and sometimes even get stuck in the keywell, which itself feels deeper than other keyboards out there. When connected to via usb, the keyboard sometimes doesn't turn back on when coming out of sleep mode, I RMA'ed it to Logitech(who to be fair have great support) and the new one had the same issue (when no other keyboard had this problem.
Summary: While this keyboard is visually appealing, (orange lit keys and display) the feel of the keys are too soft for my taste; the keys feel clunky and chunky, not at all what I look for when I type. I know it's a gaming keyboard, not designed with everyday typing in mind, but that's just my opinion. If you like a harder typing experience, do not get this keyboard. Also, the lighting is TERRIBLE. At the highest setting, it barely glows at all.
Summary: I bought this keyboard from another site. While I like the gaming-related features, I was disappointed at the actual construction of the keyboard. The keyboard is very flat, and is built such that it and the keys actually tilt backwards. That is, is you set it flat, the keys are angled backwards, towards the monitor. If you put up the little kickstands, the keys are still a little bit angled. All in all, it was a big disappointment.
Summary: BEWARE, while this keyboard is a gamer's dream, if the keys stop functioning, and they in all likelyhood will, the manufacturer will do nothing for you after the warranty expires. Mine failed after that and all they could offer me was a process to shut it down, play with the keys, and start it up again. When that didn't work, they basically told me I was SOL. Sorry, but that doesn't fly. Purchase this at your own risk.
Summary: It sure looks awesome all lit up, and I like the little LCD which appears high tech too. And the build quality looks decent too, externally. Can't complain about the macro software (even the os x one, which I am using) or about the layout. I have one, and it's suitable for the kids, but not me. Here's my beef with Logitech: The number one purpose of a decent gaming keyboard is rapid and precise response. And that's where this keyboard falls flat on its face.
Summary: I'm still using my 4 year old lite-on keyboard purchased for $7, and I thought it was a good time for an upgrade. Logitech seemed like a quality brand in all parts from speakers to mouses, but this keyboard is just terrible. Pros: - LCD Display is useful, to monitor cpu/mem usage or even temperature with some additional software. - Looks nice. Cons: - Some of the keys do not function unless it is pressed hard. - Which results in it getting stuck.
Summary: No problems with software or drivers but beware! over time the keys will wear off and you will be unable to tell which key your typing because of the painted keys for the light to shine through ive had my keyboard for 2-3 years and now about 1/3 the keys are worn off especially the (ASDLMNCEH & ALT) keys.
Summary: I bought this keyboard a few weeks ago and it's really good, I don't need more then 6 macro keys and the LCD is nice, but the only issue I have with it and it's a BIG issue is the key sensitivity in games is very low, when using the WASD keys for example, my character tends to stop moving unless I press the key really hard which is very odd.
Summary: I ordered the new version of the G15 after my old one started having problems being recognized on reboot and coming out of sleep mode. I didn't really want to take a chance on another Logitech board, but I'd gotten used to the backlighting and the lcd screen, I also liked the feel of the board in general. So, even though they removed 2/3 of the g keys, the volume wheel, and changed the color I took a chance and ordered the new version. It was a mistake.