I did this the first year I was the bike builder, and given half a chance I'll do it again despite the word coming down that we don't do repairs anymore, since at least half the bikes we sell are absolute trash. Sadly despite having a dedicated and capable bicycle mechanic on hand, my leadership insists on using me for literally anything else and having a string of short timers put together bikes with amazing features like reversed front forks, airless tires and inoperable brakes!
I know I have to fix/tweak almost every bike I pull down for a guest. Last weekend I learned to true a rim since it was nowhere close to straight, and was rubbing badly..