Hi Mandy,
Thank you for your concern. I am booked on the Chile trip in November (I think it's the 13th), but am only doing the mainland tour. As you say I have always wanted to see the Torres del Paine area, so grabbed it a while ago when I saw extra availability. Looking forward now to the Irrawaddy ; unfortunately no one has yet written a review, but there is still time if someone would like to comment please.
I hope you enjoyed the trip to Sagan and the dams etc. I found it a very interesting experience.
Mapybe meet you again on our travels,
regards,
Ray