I originally buy a 60c in 2004 , so the only thing hold I back from the 60csx be convince the financial director that a second unit be justified . the main change be the use of a removable sd card and better reception . better reception be fantastic . this be a general purpose GPS so it can be use on the road and on the trail . it hang on you side like a cellphone and be often mistaken for one . on the road I use a windsheild suction mount and a dual powercable\/serial connection . there be no voice prompt , however the beep notification and text and graphic be sufficient for I . some navigator may not like take they eye off the road to check the unit however if located properly this be not a issue . on the trail use with topo map be also very good . the unit be design around Geocaching and I have do this a couple of time and be easily able to find the cache . as far as `` City Navigator North America 2008 '' , the complete map set take about 1.7 gb of a 2 GB Micro sd card . 2gb be the maximum size that you can use . private datum can also be store on the sd card . pre `` City Navigator North America 2008 '' , Garmin allow two unit to register with each map purchase , however retriction impose by NAVTEQ have force Garmin to only allow one unit per licence . overall , a excellent product that cover a lot of application . Satellite aquisition be extremely fast and I be able to get coverage in my house . if you be go to only use the GPS in you car and be look for voice prompt and fancy feature , then you be probably better off with a NUVI , however if you want general gp in the car , on you plane , on the handlebars of you Motor Cycle or Bicycle or strap to you belt , then this be the unit . I love my 60c and 60csx .