Pardon me if I respond later than is common on here, but I will try to provide a sufficient answer to your question, at least for my part.
I voted for Trump in 2016 because I was concerned that the economy had long been neglected, as well as border security and the fact that the U.S. had been behaving too squeamish with regards to foreign conflict. I voted for him on the hope of stronger border security, a better economy, and a stronger hand in foreign policy, though not necessarily a militaristic one. I hadn't become as anti-interventionistic as I am now by then, but I had a vague hope of avoiding a projection of weakness while not getting in as many foreign wars.
Since the election, we have had more jobs coming back than ever before, especially in the coal and shale oil sector, which is good because my home region happens to be rich in the latter. This has subsequently meant were less dependent on the likes of Saudi Arabia for our energy supply. Admittedly credit should go to the inventors and developers that made this possible, but Trump gets some credit in my book for deregulating the industry enough to allow them to do so.
In foreign policy, we haven't gotten into any new conflicts that I'm aware of, though I will note we are still bogged down in some ongoing conflicts in areas where we were already committed- notably in Afghanistan. Also, he's demonstrated some level of restraint that's not the norm among presidents in refusing to retaliate after Iran shot down the drone, as well as going out of his way to try and make peace with North Korea, such as his crossing the DMZ today, and inviting Kim Jong Un to the White House for continued negotiations.
The one area I am dissatisfied with is border security. I want that wall up, as well as stronger measures to keep MS13 from spreading any further. For all the governments talk of a War on Terror for 18 years, they can spare resources to protect our boarder, root out gangs in the inner cities, and crack down on Antifa, though I think it should be acknowledged that the legislature hasn't exactly been taking the latter seriously. I also think its time for the big tech companies to get broken up standard oil style. When a company outright admits on camera that their trying to influence the way people think and effect elections, and has the level of reach that Google, Facebook, Twitter and the rest have, its time for that power to be curbed.
All in all though, I'm fairly satisfied with him as a president.