Honestly one of the better investments. It's simple really - with regular tweezers or pliers you have to tense your muscles to grip the item, which makes it inherently less steady. Letting the tweezers do the work for me has made me much more accurate.
I tried helping hands for a long time and found them to be finicky. I use pairs of reverse tweezers on the desk to hold things, or my panavise, or one of my 3D printed mic cradles (or a 3d-printed wire soldering jig for joining wires). I've tried the gooseneck helping hands and the more traditional wingnuts + alligator clips + magnifier one. I found the second one is too finicky and slow to set up, and the gooseneck ones i've used don't support much weight and the alligator clips are too small for some tasks.
One other important item - which i believe has a separate thread - is a good work light. I use an LED ring light mounted around a magnifier which is on a desk-mounted boom arm. I finally gave in and bought a boom magnifier instead of using one of the magnifying helmets and glad i did.
Two things...
Is the foam inlay made of an ESD safe material?
Soldering/desoldering heat sink tweezers have been around a long time. Check ebay for items - the Clauss 'bullet head' design are for specific wire gauge sizes and are excellent, but the cheap ones are fine, and even alligator clips (possibly more than one at a time) will do. Just remember that their function is to absorb heat; look for copper or aluminum construction - medical rated tools are almost all made of stainless steel which is a poor heat conductor, jewelery (hobby) tools are usually described as 'heat resistant' not heat conductive.
Jerry