I personally knit on a Denise2Go kit and I really like it. It's a small interchangeable kit containing only 6 pairs of needles (US #5 - #10). Same type of needles and cables as the big kit, just scaled down and put into a fabric bag. We may start carrying this kit at some point.
As a beginner, I find they are a great fit for me. The needles are fairly smooth, but not as smooth as metal needles, so my work doesn't fall off. But on the other hand, they don't grip as much as wood or bamboo, which is good as I am still figuring out my tension. The tips are not overly pointy, so I rarely have problems with splitting stitches, but can easily continental purl and K2tog.
I always like metal needles aesthetically. They just look classy. When Amy was teaching me to knit, I was disappointed when she started me off on a pair of Denise. But having knit for a while now, it makes sense as they are very beginner friendly. And even now, having knit a few small projects on my own, I still reach for the Denise. I find them more comfortable and easier to work with than metal needles. I did try using KP Options and I found the points hurt my finger tips after a while and I was more prone to losing stitches on the needle. These are things that surely I would adapt to as my knitting proficiency progressed.
Just putting my review out there. Denise Needles may not be for everyone, but I do feel like they are a good match for me at this point in my knitting career.