Anyone use a website tool for instant quotes?

Just wondering if anyone here has tried putting a price form on their website that gives people a quote right away.

I used to just get calls and emails, but half the time people never got back to me. Then I put a simple form on my site that shows the price as soon as someone fills it in and shares their contact. Now I get better leads, and people book faster because they know what to expect.

It made things way easier for me and my customers. Has anyone else tried this? How did it go for you?