1, whether the environment is satisfactory, because the process of fitness needs a good mood, so that fitness will not be boring, then the environment has a great impact on people.
2. See if the gym is fully equipped. This is usually good unless you like swimming. Some gyms have no swimming pools.
3. Look at the service attitude. The same good service attitude will make people feel happy.
I suggest you go to the gym to actually experience it. After all, everyone has different preferences and sees different things. So you still have to choose the one that suits you, so it will be easy to exercise.