I can definitely recommend the software. I once had an issue that kept corrupting files and thought my project was lost forever. I sent mail to the dev and he fixed the issue within couple of days and sent me a new build.. never had such customer service
I did this dragon project where I had around 40-60 million triangles before retopo... I do have a pretty fast CPU, 480 gtx and 32gb ram which helps a lot, but still, seeing such numbers run smooth feels crazy
I'm not a professional sculpter but I never had any issues of doing anything that I wanted..