I picked up a set of three cutters cone shaped, in Lidl - as I don't need to make a lot of spirals. They were cheap and seem efficient, just rinse under the tap after use and put on the shelf. Fine for one or two people. Thick, thin and strings are the options.
Mine is 3 years old and I use it a lot. It is called Spiralizer with a Z and I think it must be the US original. It has an important feature, maybe they all do, of a powerful sucker to lock it to the worksurface.
I was trained to never put a sharp knife in a washing up bowl - they are cleaned and dried and put away safely, it is a very good habit to develop. The spiral cutters are always rinsed out, dried and replaced on the shelf and not even graters are put in water to soak as they also can do damage to the unwary.
Have a great attachment for the Kitchen Aid. Zucchini "noodles" are a breeze. Here, in the US, these "noodles" are a big thing, especially for people attempting to eliminate carbs.
I have the Lurch one which set me back £30, but in my opinion it's no better than the one I got a friend from the Range at £5 - the design is identical and you get the same blades. I Like mine but don't use it nearly enough. I use a long handles dish brush to clean mine in the sink.... they are sharpe!
We got a Mueller Spriral Pro a couple of years ago and have found it very good indeed it was £29.99 from Amazon. We wash it in the sink which doesn't take long at all. The suction feet on it work very well and blades (4) are easy to change.