I use Setmore daily to run my IT consulting business. I'm a one-man show, so the free tier of Setmore works great for me. It enabled me to include a booking page on my website and mobile app.
With Setmore, I no longer have to rely on outdated scheduling methods like back and forth phone calls or endless emails. I can set my availability, link up to my Google calendar, and accept payments in an easy-to-use and user-friendly app.