The LBS thinks the LED lights are great. Maybe they are if your on a street with street lights.
The LEDs are as good as the old gen sets that ran offer your wheel.
If you ride off road or on a street that does not have street lights they are not enought light to ride with any speed.
LEDs is getting better...but not yet at the point I want one on a dark street.
My NightRider can make cars dim their lights. I can see and be seen for a long way.
Cheers