Melamine is a very tough product for what it is. For the hobbyist, the surface will hold up well, and provide a slick surface. It's not comparable to using a high pressure laminate like Formica, but it will work as infeed/outfeed table tops. Like Formica, glue doesn't stick to it.
The core is an industrial particle board, which is very dense and not the same as underlayment or 'chipboard'. The white (or any other color) is a low pressure laminate applied during manufacture. It cannot be peeled off, like a high pressure laminate (like Formica).
It cuts well with a 60T negative hook 10" blade. On the table saw, cut with the needed side up. I like to cut with the blade very high. The more vertical the teeth enter the material the less chipping you'll get.
If you have to cut the material with a hand held circular saw, use a carbide tipped blade 40T, with the needed side down, and with the blade extended to cut into the face very vertical. IOW have the blade exposed to near full extension.
Just a note about using a hand held circular saw:
Manage the cord to be clear of the cut throughout the entire cut.
Make sure the cord will not catch on anything, including the material or your foot.
Make sure your cut is compete and the saw has totally exited the sheet before puling it away.
When setting the saw down make sure the guard has returned to "safe", and the saw has stopped.