Summary: Tried using this for my Raspberry Pi. Did not work well. Apparently the video stream from the RPi to too fast for this card. It will corrupt the image stored on this and you will be starting over installing your image just about every other day. I found a workaround on the RPi forums to install a USB stick and modify the config.txt file to fix this. It works well for now, there was just a bunch of headache for my use.
Pros: Good storage space/price ratio. Reliable.
Cons: Does NOT work well with RPi, had to modify my config.txt file and install a 1GB USB drive.
Summary: Personally, I've got a drawer full of dead SD cards. I didn't get a big storage card because I know that with the luck I've had with these, it will just be a waste of cash. It suits my need and I'm happy with the brand and quality.
Pros: Cheap. Stores over 800 high-res pics on my canon camera.