I spotted an unused Pronto 9600 on eBay last week, made what I thought was a pretty low bid, and won it. Slightly less than the price of buying direct from the USA. Fortunately, my pay rise came through, backdated to April, so I could afford it. It's a shame that the European retail price is so much higher than in the USA, as with so many high-end products.
A week later, I've got it up and running, just a couple of minor pages left to do. It works beautifully.
The software is way easier to use than the old ProntoEdit that came with my serial Marantz. I think I got stuck about 4 times, but a quick search on Remote Central soon answered my questions.
It's certainly a lot more involved than setting up a Harmony, but anyone with patience and the ability to construct a flow chart is in with a chance of success. I've probably spent around 40 hours on it so far (I was on holiday this week), so I can see why the professionals charge for the service. If you haven't got the time to spare, professional help is definitely the way to go.
The thing I like the most about the current software is the range of graphics included as standard. The older software was severely graphically challenged, and the user really had to create their own, either from scratch, or by adapting stuff from Remote Central.
Still several thing left to do:
Learn Prontoscript, to make the scroll wheel do something useful.
Investigate the potential of the wifi connection.
Add favourite channel icons.
Chris and MAW: Thanks for pointing me in this direction.