First of all, from the airport take uber $10-15 dependingon hour/traffic, much cheaper and reliable than a taxi. In town it is cheaper to use taxi if you're a Spanish speaker (with meter) or stick to uber as well. Metro station is 2 blocks east of apartment. Inconvenient if traveling with luggage, or family.
Very nice and updated apartment. Very close to metro, right between 2 day and night markets and $3 ride to Garibaldi which is a must in the evening. Mariachi, live bands and singers everywhere. (Go to Guadalajara de Noche for alot of fun and entertainment. Didn't get to try their food sadly but had a large menu) In case previous guest turned off boiler for hot water, you tube "encender boiler nueva generacion". But Carlos and Rose are very quick to respond if any issues.
You will be between 2 markets (east and west) which offer alot of local food and vibes plus very cheap souvenirs and trinkets. But walk 2 blocks west and 2 blocks south from the apartment to street Magnolia between Zarco and C. Soto and have a late dinner at Antojitos Magnolia. Best street food I found... you'll want to thank me in person.