we use x-line, good quality, good advice and good after service, cant speak for ionics though as never bought from them, however personal opion was that when i spoke to craig at a trade show he didnt seem interested in me looking at one system, i didnt like the way i was treated, i got a coffee and went back and watched him deal with others, in the short time i watched he was the same with others, except when someone came up and spoke about 10 vans being fitted, his attitude them changed, from then on in i decided i wouldnt spend a penny on ionics,