As Tosh rightly described, i was once one of those window cleaners with "more credit then sense", and i bought a concept2o system. Worst mistake of my life. I finally got rid of it last month (not to some poor clueless window cleaner like me, but to the hard nosed finance company).
Although majorly out of pocket now, it the best decision i made.
This system does nothing better then any other one out there, its not crash tested, its just very shiny! And for me, unlike Richard Speech, the process wasnt hassle free.
The next time i want a "professional" system i will go to the professionals like Ionics or Freedom and get something not shiny, but safely fitted, and something that works all day.
Obviously everyone can make their own decision, and has their own opinion. Sounds like Richard has had no probs. I would encourage anyone thnking of any system to thouroughly do your homework.
The lesson i have learned is its not any system that earns you money-a Concept2o will not earn you more then a DIY or gardiners or anything.At the end of the day its just 2 tanks a pump and a controller. Its your mindset and as always its down to profit-keeping costs down!