The G55 is built like a tank with its metal transmitter and receiver.
The automatic syncing of the transmitter and receiver is really great. The cable emulation setting is another great feature. I love the power button too. Also, the rugged construction of all parts of the system is great. I love this system !
Very easy to use. Just plug and play.
Tone is almost exactly the same as playing a guitar directly into the amp with a cable. Only differences are that the G55 adds a little bit of brightness and highs, and the sustain and feedback behavior is a little different. However, the tone of the G55 is really great and you can use the "cable emulation" button to make the sound closer to going direct with a cable. I'm not sure digital can get any better than what Line 6 has done.
Your general opinion of this product.
Awesome product! Only with a side-by-side comparison with a guitar cable and analog wireless system was I able to hear the differences between an analog and digital wireless system. Still, I definitely recommend this product. It was a toss up between this one and a Shure analog system at about the same price.