Rihac CIS - your opinion please?

I'm considering buying a CIS for my Canon Pixma IP4300. After checking the web, I came across the Rihac CIS (www.rihac.com.au). Their site has a professional look, the manuals for the CISes are very clear and it seems they know what they're talking about. But in the end, it's the quality of the product that counts. Unfortunately, I haven't been able to find enay tests of the Rihac CIS. I wonder if any of you have experience with the Rihac CIS for the IP4300 or other Canon IP series printers. I'm especially interested in picture quality compared to genuine Canon ink.

Thank you.