Every Garmin product is designed to meet the most demanding standard: customers’ satisfaction. That’s why Garmin equipment is manufactured to give you reliable service for years to come, with intuitive features you can grow into over time - all at a price you can afford.This product is an AC charger w/UK & Euro [...]

For example, can you legally fly a direct gps route from Guadeloupe to Opa Locka, FL? Or would you have to stick to airways?
What are all the current reasons why our General Aviation system still uses airways?