You don't need any knowledge, in fact, you do research because you got none.
It can start as simple as entering the substance's name in google, wiki or any other website.
While asking around for other people's experiences, keep in mind that all people react individually on these substances. Do not expect anything. My instance should make this especially clear.. I tend to react very oddly on most substances.
I took Zoloft for 6 or 7 years, with varying doses from 25 to 200mg (200 for the longest). I have always noted the effects of a single administration on the same day, often even as soon as within 20-60 minutes. In my case, if I don't note anything on the same day, I won't note anything in weeks either. This is very much in contrast with all other people, who need a few weeks for the effects to set in.. which were, on the positive side and in my case, feeling more good-natured and balanced, less irritatable and guilty, perceiving pain and my body as less uncomfortable or so, and in particular, less nightmares, less panic attacks, more spontaneousness and a better looking skin (yes, I know.. smaller pores and more moisture, probably due to better blood circulation and anti-inflammatory properties). Like you're sort of.. uh.. lazy all day, and don't even feel bad about it or so. Questionable, but effective. On the negative side: Even more trouble falling asleep, tension pain in my jaw, flu-like feeling.. feeble and hot, more frequent headaches, blunter emotions / less sensitivity, less vigor and clarity, sometimes feeling very restless and agitated mentally. Also it does not help against my anhedonia, my lack of motivation and interest, and my social anxiety.. but it had improved my depression from severe to moderate for a while. Far off a cure, but whatever.
The withdrawal effects have always been two for me; dizziness and pimples (probably due to hormonal changes). Although I have always gradually lowered the dose in 25mg steps over a long, long period of time for stopping, it has always been accompanied by this weird dizzy sensation. I call it the serotonine dizziness

it doesn't feel exactly bad, rather something indescribably weird, but it lasted for months after stopping altogether. Pimples only occured from the final reduction of 25 to zero mg. If it wasn't for them, I'd consider it as an as-needed medication, rather than taking it regularly, but oh well..
I'd also like to say that its effectiveness decreases over time for me, though never completely vanishes, but after some weeks, it doesn't feel as good and relieving anymore as the first times did, which let to me increasing the doses all of the time til I was on 200mg. After some time I got used to the new dose, and 200mg were not more effective than 25 or 100mg, only the brief time of increasing the dose was more effective. However, it's easier to cease taking 25 than 200mg, so whenever I can't endure life anymore and decide I wanna take some Sertraline again, I only take 25mg..
But I think it's definitely worth trying out some. Before Zoloft, I took Fevarine (Fluvoxetamine), and it permanently cured my OCD for good during only a year or so.. I think Zoloft would have too, cause beside less frequent withdrawal dizziness I didn't note any changes between Fluvoxetamine and Sertraline.
Sadly, so far of all those ADs I tried, Sertraline still was the best.. or the least bad.. lol ._.
I think you shouldn't care too much about my or other's experiences.
My instance should just tell you how distinguishedly people react on it.
You must find the answer for yourself, really.
Often the reports of others only serve to scare you.
Their side effects, dependancy, addiction and all that stuff.. you find them if you seek them.
Good luck