QR is fine at handling transfers. They'll have someone herd you to your gate. Yes, I mean herd in the bad way, but it's still fine, seeing that everyone's in such a hurry and boarding your flight is more important than manners on ground. Hope your baggage makes it through though. It usually does, but there's always the odd chance that it doesn't. CX certainly didn't get my luggage through on a 45 min connection at HKG. DOH should though - who knows how they punish baggage handlers who don't deliver... (shudders)