In my previous posts, I reviewed the Logitech F710 gamepad and I commented on the lousy support I received from Logitech. While I recommended the gamepad before, I can no longer do so. Originally, when I tested the gamepad, I did so with the gamepad only a couple of feet from the computer. However, I'm using this gamepad to play games on my HTPC which means that the signal has to travel about 8 feet from the front of the computer to my couch. I've had tons of intermittent signal drops. When this happens, the controller is unresponsive and then the mode light blinks when the gamepad gets signal again. 8 feet and line-of-sight should be no problem, but it is.
I've tried all of the normal things, like checking the batteries and trying it on other computers, but the fact is that the wireless range on this controller is pathetic.
Considering that I found two-and-a-half year old forum posts on Logitech's website describing the same problem, this seems to be a design flaw that Logitech doesn't seem interested in fixing. Normally, I'd contact support, but as you saw in my previous post, you can't expect much help there either.
The point is that if you want a good gaming controller, I would suggest you steer clear of Logitech's offerings and see what Microsoft or Razer have available.