From past personal experience with UPS over years and years, I'll avoid using them as much as possible.
To give you an example, some years back I ordered a new supped up graphics workstation, a tower, from Apple. It was sent via UPS. I found a notice on my front door from UPS that they had tried to deliver but I couldn't because I wasn't home, which was interesting, because I'd been home all day, working at my then current workstation, which was 8 feet from the front door. So unless the delivery man did the weakest knock in the history of the known universe, there's no way I could have missed it. BTW, I had a little sign on the door that says "Please knock loudly."
I called the UPS distribution center listed on the form, which is about 15, 20 miles away in Sylmar and asked them to hold the package when it comes back in and that I'll drive over to pick it up the next day.
The following day I drive over to the distribution center, give the guy at the counter my non delivery notice and he sends someone into the warehouse to find it and bring it out. 45 minutes later the someone comes out and says he can't the box. The guy at the counter apologizes and goes back into the warehouse with his assistant to look for my workstation.
Almost an hour goes by before they return, and the manager sits down behind the counter and apologizes again, saying that he doesn't know why they can't find my workstation, but he will file a report and they will let me know.
As he's filling out the form, I notice that he's got his fat ass seated on a box, not a chair or stool. That box is about the correct size to hold a workstation. So, I interrupt the manager and politely ask him what's in the box that he's sitting on. He looks down at the box with a surprised expression, as though it hadn't occurred to him that he was sitting on a box, not a chair.
Guess what he had his fat sweaty ass sitting on. Yep, the box containing my new workstation. Two hours of waiting around while two squirrels went looking for a nut.
It's not the only issue I've had with UPS over the years, and no delivery service is faultless. But, I'd take DHL Express over UPS any day of the week.