I can't remember my dosage, but I took it for two weeks. It was awful. I was constantly fatigued. I couldn't get out of bed. I'd sleep for 18 hours, then I'd get up, and in 2 or 3 hours I'd just be so tired and I'd end up going back to bed. I felt completely dull, I wasn't interested in anything, I didn't want to do anything. It was pretty much all the symptoms I was taking it to treat, but it made them much, much worse. I stopped after 2 weeks because it wasn't getting any better.
But honestly, I don't think it's worth getting other peoples' experiences before trying an antidepressant. The same medication can have completely opposite effects in different people. Sertraline might completely change your life. I've tried 6 antidepressants and none of them helped me, but each of them is used by thousands of people and they'd tell you they couldn't live without it.
So I'd recommend giving it a try. If the side effects are really bad and they're still there after two weeks, stop taking them and try something else. If they're bearable then stay on it another 2-3 weeks, because it can take something like up to 6 weeks for antidepressants to start working. If you're not feeling any better after 6 weeks, you can just try something else.