I've been a Twilio customer since 2011. We use it to send alerts to our customers (both voice and SMS). I like it because it's easy to use. Even if we're paying

I've been a Twilio customer since 2011. We use it to send alerts to our customers (both voice and SMS). I like it because it's easy to use. Even if we're paying more than we could be, having an easy-to-use and stable API is well worth it. Also, Twilio is a minor expense in our budget compared to what developing and maintaining a multiple-provider solution with SMS gateways would cost.