to know if it is good you must know what project this currency is based on and what is their work team, look for them in social networks and know how receptive they are with their followers, the second step is to study the currency, performing a fundamental and technical analysis to Know your trend.
besides that we can see whether the project roadmap is running on schedule. when on schedule it means team on that project work maximally. indeed with social networking we can know the progress of that project, because every step will definitely be shared on social networking