I fish a lot out of a row boat that I hook up my trolling motor to. There are a couple of lakes I am very interested in learning the depths of. Has anyone used this and does anyone know if this system will show structure like a tree or weeds on the display? I looked at there website and I don't think it can. I am just seeing if anyone had any bad experiences with it so I can save 100 dollars.

Edit:  If anyone has any other suggestions for a depth finder that can be used on Row boats that you rent I would appreciate it.  I am looking at spending no more than 150 bucks.  

Thanks, Jason

 I have one (smart cast) and its ok. Not much on detail but can find fish and depth well

I'v used it on a boat and its ok. pertty much like the old sonar units...      

For the money you'd spend on that I'd suggest you get an Eagle Cuda 168 Protable.

If you can save up another $50 I think you'd be even happier with an Eagle FishMark 320 Portable  I have this finder and it is very nice - I use it on rental boats.

When it comes to fish finders you want to get the best resolution (in pixels) you can afford.  The difference between the Smartcast RF35 and the FishMark 320 will be night and day.