I would be very excited to hear about anyone's experiences with using one or anyone's insight on this.
I can't help you with Australian dentists (or dentists anywhere else for that matter, as I don't think it's very sensible to discuss people on the web, especially when you intend to work with them for a decade or so!
), but I have just had upper and lower ALFs fitted a few days ago, and I'm as excited as you are. (Safe to say that I like and trust my dentist.)
Certainly the ALFs are doing something already. Flossing my teeth, all the interdental gaps have opened up a little. As I understand it, the ALFs are adjusted each month. The movement happens straight away, then the move is consolidated during the monthly "rest" with tiny changes in the bone and other connective tissue around the tooth, growing on the side where the tooth is heading, and shrinking on the side the tooth is retreating from.
Here is the basic plan for me (given that I am recovering from poor childhood diet and bad childhood orthodontic work, with bicuspids removed in ignorance to "make space" and my upper palate retracted by a brace, inadvertently leaving insufficient space for my lower jaw to take up its proper position). First my upper and lower ALFs will expand and perfect the arches, re-opening the bicuspid spaces. This will take as long as it takes. (Supposedly, it can't "overgrow" beyond its genetic blueprint, given the small forces involved, so the "end result" should be apparent when the teeth won't move any further.)
Then, as I understand it, my upper palate will be pulled forward as a whole using night-time traction gear attached to a mixed ALF-braces device (which will be maintaining the arch shapes and correct "lost-bicuspid" gaps, and raising some of my teeth further out of the jaw to correct my bite), with additional cranial osteopathy to help the upper palatal bone move, again,
until it will move no further. At the same time a bio-bloc (like a pair of sloped plastic fangs that pull the lower jaw forward every time it closes into correct alignment with the upper) will take my lower jaw along for the ride. I have TMJ problems, and these should self-correct as the lower jaw joint (a complex mixture of muscle and connective tissue allowing multi-directional movement) relocates itself further forward along my skull to its proper position.
Probably, at the same time my upper skull should become more level, as it no longer needs to crane back to keep pressure off my airway, now the palates are moving forward, which should improve my overall posture.
Finally, they will implant false teeth into the recreated bicuspid gaps (although I might prefer dentures, because regrowing your own real teeth is on the near horizon technically).
At that point I should be "done", although I will need a night-time retainer for at least a decade afterwards. (There might also be physiotherapy for my lips and gums to help them adjust.)
So far, the main impression has been that it's a bit painful, with the odd tongue ulcer and a bit of tooth pain, but that's already a lot better. (I've also had an urge to rip the whole thing out several times, which I think is a normal animal reaction to being "confined", and is easily passed through without doing it!)
Certainly eating (even drinking) and cleaning the darned thing is difficult - so is speaking - but everything is improving each day, and I'm only a few days in. (My father has a denture and told me it bothered him for about two months- now he notices it about as often as he notices his socks.)
It will take a few years, and cost a bomb, but I'm very excited, as I've suffered a feeling like a band of steel around my face since I can remember. The feeling of things moving OUTWARDS and FORWARDS is wonderful to me. With the right diet and exercise, I really feel I'm on a good path.