I liked him. I also really liked his exchange with Kira when she told him off a bit for looking all wide-eyed and happy, calling DS9 a "new frontier" or something like that. For her, that had been Terok Nor (sp?) and she remembered the horrors of the place. She schooled him on a few things really fast. That was great because you could understand both perspectives. He was naive and just happy to be there and experience something new, and she had a hard life and let him know that even though he was wide-eyed, he still suffered from a case of eyes-wide-shut-itis.
This was really a good show.