Hi Kev,
If you are going with a reputable company you be will totally safe, as somone pointed out in another post the 'boys' are always looking out for you. Living with these guys on the trail for 8-9 days and falling on ya butt (occasionally even they fall over lol) and climbing/hiking etc with them you become good friends so don't even worry about the safety aspect mate because you are in good hands.

You will have an exceptional time Kevin. I'm going back again myself and cant wait.