Very slow app Generally speaking, the service is not bad. However, the reason for three stars is the extremely slow app (at least on Android). Just opening it to check messages or make calls takes an unacceptably long time, and sometimes even becomes unresponsive. After it's open, it's very slow to respond as well. It's a pity because otherwise they offer pretty good features for a decent price.

Solved our working from home phone line… Solved our working from home phone line issue at the start of the pandemic. It's affordable & easy to use. We purchased two different area codes and can switch back and forth between numbers with no issue. I have had some glitches with people unable to call me back from 504 area code number but the other 803 area code number has never had that problem. UPDATE 2.15.21 The Tresta team saw my review and called the same day to assist with the issue I was having with the 504 number. The issue has been resolved and they credited my account for one month due to the inconvenience. Excellent customer service and tech support.

Customer service has been superb Customer service has been superb. Tresta has lots of competitors, but as far as I know, they are the only ones that will pick up my call and make the adjustments requested without delay. I’m a fan.

Tresta is one of the easiest most… Tresta is one of the easiest most transparent tools I've used. The amount of features is broad and the flat price for everything is amazing. When I had a chance to use their support, I found it intelligent, and useful, not outsourced "reading a script" level. Highly recommended.

Transparency and simplicity meet features… I really can't put into words how much I love this service. The feature set and pricing are unmatched. The customer service from day one was awesome. But what really strikes me is their transparency and simplicity. No gotchas! For example, read their privacy policy. They have gone to great pains, after the lawyerese to explain in layman's terms what you just read.