I have a denise set, but just had to try out the options so I got some size 4 and 17 needles (since I don’t already have those in denise), and the 24" and 36" cables.
The options cables are much, much thinner and more supple than the denises. They also seem a lot more secure. (Some of the denise cords are constantly coming apart when I’m in the middle of knitting, which is soooooo annoying.) I have one set of addis (wanted to see what the hype was about), and I didn’t care for the bend near the needle/cord join or the floppiness of the cord.
I do wish the options cables came in smaller lengths – for sleeves and hats and such. But I successfully used magic loop to do some sleeves recently, and it really wasn’t so bad. I think with the flexibility of the options, it would be a breeze.
As for the needle portion, I think I still prefer my denises, at least so far. I used the size 17 options last night and they were so clanky! (Probably because they’re so big and hollow – the other sizes are probably not as loud.) They also seem incredibly slippery, but part of the awkwardness may have been due the fact that I’m just so used to the denises, and also because I have never used needles quite that large before. Another limitation of the options cords is that you can’t link them together to make a longer cord as you can with the denises. It really comes in handy when you want to unbunch the work to see how it’s going.
I thought that if I really liked the options, I might hock my denises, but the jury is still out right now. I think what KP should do is to offer bamboo or resin needles that fit with the options cords. I could see a lot of people wanting a set of each to use with different kinds of yarns. (Oh yeah, they should also figure out a way to stamp the sizes on the needles. And offer shorter cords. Then they’d be perfect!)