I have used fancy "braces" with business suits and metal clip suspenders for other trousers and jeans.  These Dickie perry clip suspenders are superior.

PROS
1) They are much easier put on and adjust, by far.
2) They never slip off or fail.
3) They are so comfortable that you do not even know you are wearing them.
4) They are sturdier.
5) The bands do not slip or loosen.
6) Bands do not gouge nor irritate the top of my shoulders.
7) Stitching and fasteners are firm.
8) Perry clips are "plastic" but very very tough.
9) They are less expensive and a very good value.

CONS
1) May not "look" good with more formal wear, but I would be willing to try them.
2) May not be suitable for very very large persons.
3) They are intended to be used only when wearing a sturdy belt.
4) Longevity is unknown to me because they are a recent purchase but I would bet they have an acceptable lifetime.