I have the Garmin 60CSX and has been a serious trooper. It picks up satellites usually under 1 minute, and works in the cup holder between the front seats of my truck just as well as it does outside.

I have been under heavy tree cover, and heavy cloud cover and had some good results. BUT, there will be times when it just ain't gonna work, but it is not often with this unit. Last week, I was at 4500 feet going around the mountain with some heavy clouds, and it didn't work well at all for about 30 minutes, but after that it came back. It was weird. But all in all, this newer antenae is great! It retails for $450, but CHECK THIS OUT! and it has a $50 rebate.

If your going to but one, this is the one. It is also remote antennae capable if you need it. Oh, sorry, you wanted basic. This is far from basic, but will do everything you ever want.