I am not on it, but I have read posts from people who say it has saved their life. As for the side effects I know it may be a hard med to wean off due to the withdrawal sympotoms, but that is probably someone who has been on it long term. Just my opinion.
Like Kitt, I have not taken Effexor but many people on here have told us how good it is. See if you can manage to keep on with them for 4-6 weeks. The side effects may calm down after that as your body gets used to the med.
Best of Luck