This is the first mining OS that was able to actually set voltages for Polaris cards. I tried a lot of alternatives and they were not able to suit my needs. You can switch to different algos with the most recent mining software in no time.
The Telegram community is very active and the devs are working 24/7 to provide new features and support the users.

Definitely worth trying.

It depends on a lot of things. The coin you mine, the price of electricity in your country etc.
It still is profitable but the best scenario is to mine new coins or just undervalued coins in which you see long term potential. In our opinion its becoming less and less profitable to mine bitcoin and other major coins. A good idea would be to focus on privacy coins, as we see biggest potential in the following years in them.