Stephen S, there's no need to defend your choice on here, I realised a while ago most people on this forum who have massive opinions about ionics dont actually know hardly anything about the systems, and usually have never owned one. All they know is that they are expensive, and that they cannot afford them. You'll never change the mind of people like that.
I have a pro-6 thermo, and I think it is the business. If I ever buy another systems, it will be another Ionics.
I've seen other systems, including DIY and IMO they are a load of pants in comparison, but those who own those don't think so and that is their perogative.
Ionics has its fan boys, (like me ha) and also its haters. Everyones entitled to their opinion, just ignore mate.