Solar system pricing

Starting to look into the topic of solar for our house.

We have a quote for a 6.6kw system for $8449 through solar naturally. Selling points the salesman said was warranties and no sub contractors. They were sprucing the no payments for 6 months scheme. Just looking to compare prices, has anyone used them before?

Edit: we haven’t signed anything yet just wanted to get prices from others who had similar systems installed.