I got one free some years ago from collecting tokens, I forget what for now.
To be honest I forget that I have got it and either sweep up anything that has been dropped with a little dustpan and brush or get the main vacuum cleaner out.
They are fine for picking up a few crumbs like a crushed biscuits on a carpet but do remember to empty it straight away you will find out why if you don't....
I wouldn't bother to get another.
I got a slow cooker the other week. Now that was a good buy.