I got one in the Range for £7.99, it has suction feet to fix it to the surface, and I love it, want to use it more than I do though. I've only used it for courgetti, but there isn't much else I can eat, since butternut squash and sweet potato are out. (unless I want to go over my carb allowance.)
Mine has 3 different slot in sections, 2 with both small holes for spaghetti or fettuccini and a wide blade for... dunno really as I haven't experimented much, but a wider blade like you'd use for wider strips of veg... and one slot in section with just a wide blade.
I've only used the very smallest blade, called the "Noodle Blade" as opposed to the "Large Noodle Blade" (gawd, such inventive names! Duh!) which I suspect would produce fettuccini, rather than spaghetti.
I did get left with a 'core' of courgette after making my courgetti, but not being inclined to waste stuff, I just chucked that in with all the rest... didn't bother me. And I got lovely roasted cheesy noodles as I put them in the oven - with cheese... mmmm!
The actual Spiralizer seems to be perfectly adequate for me, but I have seen others advertised on one of the shopping channels that has a box underneath to collect the spiralized veg, I think that one was called a 'Spudnik', but this one's fine for me.