April 2022. Used Uber in Lima, only twice, to/from airport/Miraflores. Reliable. Otherwise I'm a walker. Cusco - Uber was not reliable. Taxis had a tourist tax. Used hotel car, that was priced in the middle for airport. Otherwise walked.

US-based AT&T was fine in Lima and Cusco, but also bought cheap SIM card. Hiked Inka Trail - no service and very pleased with that. Guessing service is available at MP, but had no interest in finding out.