I have an eTrex Legend.... had it for a few years now.
I like it alot, I bought the extra Map Source software for the car.
I've used it when flying, and all types of trips, its been to Hawaii with me.
I used it on my recent trip to GA.
My biggest thing was... an accurate measure of speed, I like to see how far off the car speedo is.
But moving to a new area, gosh I needed to find a Wachovia bank, so I simply went into the find feature, went to services, then bank and bam!
Or find an address, I can find any adress in the maps that are loaded into my GPS it'll tell me where it is, how many miles and how long it'll take.
Only grip is no turn by turn directions, it does a stright line from your point to the spot, and you gotta figure it out on the moving map.
But if you create a route using the software on the computer then upload it to the GPS, it'll give turn by turn directions.
I need to geo-cache too