Here's the thing - for me.
I don't discount a window cleaning supplier/manufacturer due to size or advertising. It depends on the balance between my perceived view of the quality of their goods, service and value.
For me - a turnkey system is not necessary because I have this and another forum; advice from other local w/c's who were starting wfp about the same time as I did and facilities to make adjustments, repairs etc. undercover.
Just because Ionics are "the biggest" doesn't sway me one jot. But if when my SLX poles need replacing I find that Ionics do a better alternative then I would buy one. However - if the poles were about the same then the aftersales service of my present supplier (direct emails as guidance and answers from the owner to what are pretty petty queries) would swing it easily.