I use my LBS maintenance-wise for things like pressing in headsets, back wheel builds for my trials bike and the occasion things I don't have tools for like disc mount facing or BB I don't have the tool for.
Unlike other bike shops I have been too, my regular one is very, very good. I would trust them to carry out any task on my bike. And having been going there for years now and becoming friends with them, they always give me a good price ( or no charge on small things ) on work needing done. I usually get a tiny bit off RRP aswell which is cool