I second Kelly’s assessment, though I’ll say that my Denise needles are great for natural fibers but miserable for certain microfibers. It feels like you have to force certain fibers over them, they fight you the whole way. I’ve really only had this happen a couple of times. Most yarns are great.
I don’t find the Denise needles to be at all like the cheapy plastic needles sold in major crafts stores. They are smooth and have a nice point, but, as Kelly said, they aren’t so smooth as to throw stitches all around. They are definitely different than Bamboo, but if you are looking for interchangables, I would weigh your needs against these two major sets.
If you really can’t bear to knit on anything but bamboo, the set you found might be worth while to you, but expect to be replacing it in the future. Most people report holding onto their Denise needles forever and sometiems buying additional sets so more unfinished projects can languish on the Denises they were started on. 