Trailfinders managed to get excellent deals through Korean airlines to NZ for us and managed to hold the flights for six months before we had to pay. Unfortunately the airline did change their billing requirements which meant we had to pay early but Trailfinders kept us updated and managed the issue. One thing though if you book make sure you request to be seated together, we managed to get separated on the flight as they had us down as two window seats despite the fact we we're returning to NZ to get married.
3 provides almost acceptable network quality in central London but intermittent cut outs become frustrating during peak times. In terms of managing an account they do a reasonable job but continued up selling becomes tiresome quickly (esp mobile broadband). It works most of the time and the prices are ok, want more than this and you will be left wanting.
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