Two Wheeler Dealer (Brea) is the LBS that I $upport. I have used them to perform regular maintenance on my bikes for the last two years. I feel that they provide good input and discussion on road bikes and mountain bikes. The shop always seems to be busy, so finding time to pick their brains can be difficult.
They did a nice job fixing my ATB tandem after folding over the small chainring. They spotted a cracked rim on my road bike that I never would have found. The service has been very good. I have not been entirely satisfied with the wheelset and rim recommendations. But a lot of that has been the result of 20/20 hindsight. They recently built up my LHT, from a build-kit I brought in. I have been very satisfied with it.
The Bicycle Lane (Fullerton) recently openned on Orangethorpe in Fullerton. They don't seem to be very busy, but I expect that to change. Marty is very helpful and knowlegable.