Alternatively, you could say that 97 customers out of 100 who buy a Salus will have no problem...
Lets say you do 100 installs using Honeywell, and your mate does 100 installs using Salus.
You have spent (say) £10,000 on stats, he has spent £5,000.
He has to go back to 3 of them, whereas you only have to go back to one.
I'd go back to a job for £2,500 in my pocket.
Just playing devils advocate. I don't mind which one you buy, we sell 'em all!