The market likes it.
Gas prices like it.
American security and way of life likes it.
World security likes it.

Guess who hates it?
1) The Democrat Party - Iran's greatest ally. Frankly, Iran would be lying yet again if they weren't terrified of a POTUS who was willing to back his threat of taking Kharg Island. And they KNEW he would do it, unlike recent past appeasers who occupied the office.
I hope that peace lasts, but I am quite sure that Iran will break the agreement if the Democrats offer them hope of gumming up the effort here on the US home front.
Expect Dems and their MSM mouthpiece to begin trying undermine the deal by misreporting on the details - that will happen almost immediately.
We'll see how long it can last despite their efforts.

2) Putin hates it too. Iran was a very helpful ally to Russia.

One might consider this ironic if he forgot about Liberalism Rule #1: Accuse others of that which you yourself are/so. Dems side with Putin yet again. Putin lovers.