This GPS was going strong year after year until one day trip, the tip end of the plug became unscrewed (the part that plugs into the lighter. Nope, dont no the names of these plug parts). I'd noticed it was prone to coming unscrewed but I'd screw it back and kinda ignore it. Then. one day. It happened. I pulled it out and the tip STAYED IN THE LIGHTER. While we did not all blow up, it did blow the fuse to all the lights in my dash. Thankfully it wasn't dark yet (only dusk) and there was an Autoparts place in the vicinity. We replaced the fuse and all was well... except for my Garmin. It never turned on after that. Rather than have it "fixed" for a premium price (no guarantees either) I decided to buy a new one. Garmin nuvi 40. I do prefer the flat screen to the c580's hulking "old school" monitor style. Granted, theres nothing wrong with it. I used to like to cradle it in the cupholder. But the flatscreen fits in my purse so now I can take it with me without worrying about theft. No one's taking my purse without a massive fight. So do I recommend Garmin c580? Yes. It was a great product. But shop around. You might like something else better... Processing Speed I never had trouble with processing. It wasn't instantaneous but thats to be expected with satellites on personal devices! Map Quality & Accuracy This one was accurate for us. We only had a couple hiccups on certain "confusing" roadways and small roads. Ease of Use The easiest GPS I've used. I haven't used many but this was the easiest of the ones I have used. TOP NOTCH.