As far as I'm concerned every window cleaner on here should invest in a Gardiner's Xtreme pole.
Forget about Ionics, Facelift, Brodex poles or every other pole out there.
Yes it's expensive, but you will earn the difference back in no time. You will work faster, you will be less fatigued, you will earn more money a day. Look after it and it will serve you well. Let's say it will last 3 years. Multiply that by your yearly turnover. A pole doesn't cost much at all compared to what it will earn you. There really is no competition. Look at some of the users on here, how many poles they have bought before seeing sense and going with a Gardiners pole. They have the best product, and they have the best service.