I'm sorry, but the last minute or two ruined it. Between Felicity blithely breaking the engagement and suddenly being able to literally walk out on Oliver, I'm not sure which twist caused the most severe plotline whiplash. Seriously, it just seemed like lazy writing and totally out of character for Felicity that…

So Harris can clone himself, and his clothes apparently, but not his accessories? (Two Harris's, two sets of clothes, one watch…)