I have the Denise set myself, and I love it! The needles are smooth, the cables sturdy but flexible, and it's just so darn easy to just try out some needle sizes, or even switch in the middle of a project!
I've got three projects on the needles right now, all on Denise.
I also regularly stuff my work into my bag, and provided you push down the knitting to beneath the grey needle bit, that is no problem.
I highly recommend the set.
Edited to add; this probably goes for all circular needles, but it's sooooo much more comfortable to work with those than with straight needles when you knit flat, even with relatively small projects.