You can send files of up to 2GB.
Which file formats does it support? If you simply share it as a link, it'll disappear after the first download.
It also lets you add an overhead percentage, for other internet tasks that are bound to be running at the same time.
If this is just a one-time thing for you, perhaps because this one file happens to be larger than your email service can handle, then read on as we go over some solid alternatives to WeTransfer.