My gf and I visited Australia and I wanted to surprise her with a wedding proposal. Emailed to Alena and she was very helpful and provided some good suggestions on where to do it in Blue Mountain. Decided to propose in the Skyway and Roberto and Alena managed to work with Skyway such that the Skyway ride will stop in front of Three Sisters / Katoomba Falls so that I can propose. I seriously doubt that it will possible with other tours.
On the day itself, although Blue Mountain was clouded with fog and everyone has cancelled their tour, Roberto and Alena were so accomodating that they conducted the trip just for my gf and I. Needless to say, the proposal was a success and my gf was completely caught surprised :)
Everything about the trip was just perfect. Roberto and Alena are fantastic guides and they really know their stuff. I strongly recommend anyone who's interested to visit Blue Mountain to sign up with them.