I bought this to replace a broken stereo in my boat and this fit right into my 3" RPM gauge that was no longer working. Hookup and install was simple and straightforward. When I turned it on I was VERY surprised at the sound coming out of this unit…way more than I will ever need or use (FYI, I only have two speakers). I just like a little background country music playing when I’m slaying the snook and redfish. The XBass option really adds a lot of depth to the sound as well. The Bluetooth connected immediately (no passwords needed, etc, just instant connect) and works flawlessly. I liked the gray color better than other black units because it matches my dash and gauges better. I also like the fact that this radio is perfectly located now where I can see it to change stations, etc (my old one was under my steering wheel and I had to bend over to do anything). My only complaint is the the radio station presets/memory are nearly impossible to figure out…took me about 45 minutes to save 3 stations and I’m still not sure how I did it. Oh well, I got it for the bluetooth anyway. After install, my son looked at it and said, wow, that looks nice, just wait till the saltwater hits it. He’s right, the true test will be how it holds up after saltwater exposure. Overall, very happy with looks, sound, and install.