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The day of the job interview I went in a suit. The recruiter (whom is the boss there) complimented me on my professional look, but said that generally they dress casual at the office, and that they would suit-up only when meeting clients or going to conferences, big meetings, etc.
Tomorrow I'm gonna start my first day: from what I read online, it's a good idea to go a bit overdressed (I will probably ditch the tie, but still wearing a suit). Some of these websites advised to keep this overdressed look even for 2 months. In my opinion this would harm me more than do good. It would give the impression that I'm not trying to blend in, that I do not care about fitting or even that I think they are not professional enough.
The way I see it, the first day is more than enough. Do you agree?