We moved to 3CX recently, and I used it at a previous company. Even with the price increases, it's still much cheaper than most, and has been great for us. I mean, I just want to be able to pick up a phone and talk to people, and it does that fine. However, we are still looking at Yeastar for the future - concerns over further price increases, plus various stories of users having their account pulled if they say anything against the company on public forums is also a concern! I don't want to request help there only for it to rub someone the wrong way and need to do a hasty migration...