I've used creamo- it's interesting stuff. It is, as claimed and IMO the slickest product I have ever tried. I do find as a pre shave it does interfere with the soap or cream your applying over it.....

It is very 'chemically' lol- there is nothing real about it... I would say as far as getting a super close shave goes creamo is great stuff, however for me it detracts from the luxury shave experience which I enjoy so much- for this reason I did not repurchase it when I finished the tube.

If you love your cream, using as a pre shave will not necessarily make it any better IMO. Of course ymmv.