What started out as a positive experience quickly turned sour. This product has various software bugs that cause the unit to crash and reboot. In particular when "finding" an item such as a tide table. Sometimes it works but mostly it starts beeping then reboots after about 5 seconds. There are other software bugs as well which I've encountered. Now the good part....I've called Lowrance tech support three times and they have yet to help me with this problem. 1st time I waited about an hour on the phone before I was allowed to leave a message (go figure, I guess they hope you'll give up and go away). Someone called back and left a message when I wasn't standing in front of my phone and didn't bother to leave a direct phone# so....you guessed it...I had to call again and leave another message after another hour with my ear plastered to the phone. Since then I've sent 2 E-mails to them and called one last time and waited another 30 minutes to no avial. Clearly Lowrance has some serious technical and administrative issues. Is this a hot looking product with lots of features? ...sure...but trust me....its not worth the headaches and reboots when you're sailing up a narrow channel (as I was). Avoid this product and consider another brand until Lowrance decides to grow up.
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br /Very dissipointing.

Purchased this unit so I could find some streets on a trip to the South. This unit is better utilized in a camping or hiking mode. It does not plot a trail to an address using a street structure. It will plot a trail, but is as "the bird flies". It does have excellent battery life, and the power point adapter included is great. Buy the Plus unit because you get the mapping software and an MMC card which you will need. The built in map is only good down to 8 miles zoom in. Anything closer and you will need to have created a custom map. Quality is excellent, as is my experience with Lowrance. The mapping software is also excellent. This unit will work great in my boat as well. Mapping software is also excellent and easy to use with unit. Overall I am happy with it.

The display is outstanding, even in bright sunlight. The night viewing feature is great for driving at night as well. Although I haven't learned how to use any of the advanced features yet, I navigated myself around the middle of the desert while off-roading with only a cursory introduction to this GPS device. My only (minor) complaint is that the rubber boot that covers the cable connector on the bottom doesn't want to stay put. Highly recommended.

Don't buy H20 C Plus (from Lowrance) from Amazon.com!!!
br /The H20 C Plus is a great product! But do not buy it through Amazon.com. I recieved the GPS itself but not the "plus" items and their customer service would not get us the items that had not been shipped. They said that they did not control the third party sellers that sell on Amazon.com. They said that they "Amazon did not have it in stock and could not help. Even though another vendor on their site did have them in stock. I suggest not buying anything through Amazon.com unless it is actually from Amazon; if it is another vendor just using Amazons website you have no recourse what so ever.

Incomplete package as others mention...twice!!!!! On the ph w/ Amazon for over an hour with no resolution.Will not buy this product because it appears all PLUS packages are FALSE.

I purchased this item several weeks ago excited about the Plus Package with mapping software, memory card, and memory card reader. I had received the item quickly but had quickly found that I had received the standard model and got in contact with Amazon. After speaking with them for almost an hour, the lady had told me that she was sending me a replacement with the CORRECT items. This was made clear and I needed to then return the item I had received. FIVE DAYS LATER, I received the EXACT SAME THING I had received before. Standard item with no plus package. I had called again and after a long explanation of them confused about their own explanation on the website I asked for a refund. Now a few days before my fishing trip I am without a GPS with mapping software that I was needing. Terrible customer service, and she let me know that i wouldn't receive my money for probably a week. Never buying again.....

i have purchased a lowrance h2oc plus gps hand held system and i am still trying to obtain the plus package (memory card, mapping cd, and interface cable). i have not to this day recieved the proper help from amazon or fogdog where the unit was shipped from. i have recieved a complete run around on both ends. i have made numerous calls and have spoken to many reps and all for not. all i want is what i paid for nothing else. if this message is read and if there is anyone who can assist in resolving this situation please feel free to contact me at 5165741325 or hotrod63@optonline.net
br /sincirely disapointed, frank tamboles

Unit works very well in constant moisture of professional fishing,my only problems have been downloading detailed maps from computer to memory card. Really wish this unit had a barameter on it. All in all I would recomend this unit.