We are spending two weeks in Mexico in January. Originally, we were planning to spend the entire trip based in Puerto Vallarta (staying in 5 de Diciembre). This will be our first visit to PV - we were supposed to go in March 2020, but that trip was abruptly cancelled by COVID! However, I'm wondering if it'd be worth flying from PV to Mexico City for 3-4 nights within the trip. We've never been to Mexico City but it's been on our list, so I thought this might be a nice opportunity to get a taste of the city while already in Mexico. We would need to fly back to PV before heading home, since we used a Delta companion ticket to book roundtrip MSP-PVR (Delta doesn't allow open jaw flights on companion tickets).
For folks with experience in Mexico, does this side trip to Mexico City seem worthwhile? I know a few days is likely not enough for such a big city, but I thought it might be a nice beach break, and give us a sense of whether we'd like to go back to Mexico City for a longer visit in the future.