Independent and impartial corroboration is very important when making bold statements to potential clients - especially when it's about money.
For example, here's a valuable endorsement from the UK government sponsored Moneyhelper.org.uk.
"Insurance brokers can help in most circumstances. They’re experts in the insurance market and can often find you better cover at a great price."
Scroll down on the above web page and you'll also find their concise guide on why consumers can benefit from using a broker for their insurance.