I'd also add - whichever brand you chose - invest in a good pair of embroidery sissors....the ones with the angled head. They are great for clipping of all those threads really close to your work. Love mine.
For myself....I wish i could find a pair of "mini" pinking shears - the regular ones are all so "heavy" that with my hand problems it is so painful to use them. Anyone ever seen minis ???