Editing saves on my PC

Is the sharkport the only way to do this or is there another/better method. Basically, I want to copy my saves to my PC so I can:

1) back them up

2) edit them

Thanks!

You can use any of the following:

• Xport (formally known as the Sharkport in the US)
• Ems PS2 Memory Card Adapter
• nPort

nPort is the only one that is free but it's not fully stable and needs a few features tidying up/adding etc but is worth a shot :)

whats some of the issues with nPort ?