We say: go visit somebody else's website. Look for their affiliate program. Find out if your web designer is getting a kickback for referring you. Some providers pay 10% or more every month.
Affiliate programs make it difficult for a web designer to make objective recommendations about what's good for your business. So good web designers generally don't participate in affiliate programs, and you can rely on their advice. We don't have an affiliate program, so when someone recommends us, you can be comfortable that it's because they like us.
On the other hand, maybe your designer has had good luck with somebody else and knows that they provide quality service, a system they're already familiar with, and a price that's in your budget. In a case like that, sometimes it's better to go that way. Few roads are better than the ones one knows best. We'll be here if you need us.