1) The main disadvantage of - stating something negative of an action, job, hobby, etc;
2) On the other hand - linking an idea that was given to another one.
3) Moreover - adding more points to a statement.
4) Apart from - exception to a general statement.
5) However - changing from negative/positive to something positive/negative.
6) In addition to - adding more features to a thing.
7) All things considered - the ending of the points/statements that were made.