Take the bike back and bring up your issues. They may have had the new guy put the bike to gether and it did not get checked by anyone before it hit the floor. I have a guy at my shop that, for some reason, does not like me to check his work. As I don't stand around waiting for him to finish, they sometimes get past me. At the least this will let the shop know they have a problem. Then go check out all the shops. There must be a bunch in Portland. Find the one(or several) that fits you best.