Well I have the Etrex Vista and love it. Well I have nothing else to compare it too but so far it hasnt failed me yet,except for a couple of no finds but that is probably my fault.I do have problems under really heavy cover but I think most GPS's have the same problem.I got mine on Ebay for over $100 under retail.So far so good. Is it really worth it to get Mapsource for it though? I wish I could see it on a Vista before I bought it .