Using the GP - 735 is easy. First, connect it to your system via the TTL serial connection. Make sure your system's operating voltage is within the 3.3 - 5.5V range. When you start it up, it'll reach a usable state in just 29 seconds. The 1Hz update rate is fine for most situations, but if you need faster updates, you can set it to 10Hz. When it comes to cables, use the 6 - pin 1mm pitch JST type ones, which you can find in the recommended products. Remember, this is the TTL - UART version, not USB. For maintenance, keep it in a dry and clean place. If there's dust, use a soft brush to clean it gently. Check the datasheet for more detailed information and use the GPS evaluation software to test its performance.