We've kept it simple by using Google Forms but I think Typeform offers more functionality and makes collecting feedback via forms a better experience for the users.
Initially, we had a fairly simple strategy of just asking people in person to fill out a survey on Google Forms but later realized that there's a lot of wasted potential in doing that.
Since then, we've started using Qualaroo to embed surveys on my website and send them through SMS and emails.
We get a lot of good insights about customer satisfaction, churn rate, and reasons behind cart abandonment.
The tool also has advanced data analysis features but is pretty easy to use, so I'd say give it a try.