I've used Garmin GPSes for about 30 years - they are the 600 lb gorilla of the GPS world. I've seen better ones from time to time, but they usually don't hang around for the long term. Back in the day, a Magellan would beat a Garmin out cold - MUCH faster to acquire a position from both warm and cold start, even when it had to reload all the ephemeris data (cold start). What, if anything, is better than Garmin today I have no idea - but they've always been on the slow side.