To Gu or not to GU

[Seeker911]

I have read a number of threads and had some very valuable input from hubbers re GU gels and similar products. I also know there are some very experienced and knowledgeable triathletes out there who are not that in favour of using gels etc. So here is a link I picked up on facebook and at face value the product really looks good. The question is ... is it?

 

http://www.challengecapetown.com/?page_id=113