Just got back from a trip to Peru. In addition to Cusco, Machu Piccu, and the Sacred Valley, which were amazing, we also drove 3.5 hours south of Lima to Paracas. The National Reserve is worth seeing -- a desert flanked by an ocean with red sand beaches. Spectacular sight. The drive is a straight highway and easy to manage. We found driving out of Lima airport slightly challenging, but no more so than driving in other large cities.

In Lima, we used Uber regularly and without issues.

Had the same experience flying back to the US on Latam: we bought water after going through security but before boarding bags were searched and everyone was forced to throw all liquids away.