I can not live without my Nuvi now. I can't say I get lost without it because I can't remember where I'm going most of the time. I do question it's thinking at times. I wonder why it takes me the route it does when we get there. I think it gets caught up in hollering at me and forgets what it is doing.
I have had the opportunity to use many different handhelds. I was never impressed with the navigation on them.
If you don't mind getting hollered at occasionally get a TomTom or Nuvi for traveling. They are the best thing since cigars.