Not specific to this device, I have a very good experience with Garmin devices for more than 3 years. Hardware build is always good except for the processor which doesn't match with the TomTom devices (at least from my experience)
head unit, i will suggest Dynavin N6. it comes with burr brown DAC and awesome features too.
How is the Garmin doing?
the one in rapid, i was very much disappointed with the stock maps . so loaded OSM generic maps and thats some what better than OEM maps. basically im using the Garmin for Reverse cam only
2nd Service (1 year / 20k km) completed a month ago (on 2nd May) with 15k+ on odo.
Apart from Engine oil, Oil filter, Fuel filter & Air filter got the AC cabin filter changed as I got some foul smell with AC 'ON' Let me post the detailed cost break down in a couple of days