I don't care what gateway you use (or do you use any gateway at all) as long as I get a bitcoin address to send and your delivery is reasonably quick. That is: instant (before any confirmations) for low value transactions and for services that can be easily turned off without harm to the seller if the payment will bounce (e.g. one month subscription which you can turn back off if the payment won't be confirmed within hours or if customer doublespends); max 3 confirmations for mid-value transactions for goods/services that cannot be easily reverted.

That is, I never purchased anything of high value using bitcoin-fiat gateway, so gateway reputation didn't come to play. If I were to send significant amount of money that way, I'd like either to use a reputable gateway and/or to get a clear statement from you that as soon as I send bitcoins to specified address I am good and you are responsible for any gateway problems (i.e. you will honour my payment even if the gateways will screw us over - the gateway is your business partner, not mine).