I used the LC1 on my Kingquad 750 BBK to display the AFR. It worked good with the VDI ECU logger to tune it. BrianE took over the engine when my frame failed and I got the Can Am. He took the time to tune a lot more power out of it by running 91 octane and the proper timing/fuel map. Power difference with the tuning was very noticeable. The O2 sensor failed once on me and once on Brian. I recommend tuning and then remove the O2 sensor until or if you want to tune again, unless you want to see the AFR at all times and don't mind replacing the sensor whenever it fails.
BrianE now uses another brand AFR gauge on his Can Am with a controller. I can't remember which one.