It's fine to study JW's, but you need to know going in that their "Bible studies" are always using a WT book that has a few scriptures cited. In other words, they use the Bible to support THEIR teachings instead of using their teachings to support the Bible. BIG difference. Their history is chock full of going beyond what is written. A "good" witness is expected, no required, to believe everything that comes from the WT comes from Jehovah. If this were true, then you would expect to see a far better history than what their so-called "one true religion" has demonstrated. A good start would be to look at the Bible's teaching regarding the return of Jesus. The WT waives all that off as figurative, in fact, they'll try to tell you that he ALREADY returned and that all but JW's missed it. Moreover, they've said he would return before, first visibly, then invisibly, then a new date...the world was supposed to end so many times I lost count according to the WT.
People here have lived it, I've only studied it for the last 2 years. Like I said, it's fine you want to study them and their teachings, spend EXACTLY the same amount of time studying the opposing viewpoint and you will arrive at the truth. Be advised that their literature, the books and mags, are all very deceiving. They sound very convincing and are easy to believe.
My own personal opinion after a zillion hours of research, study, meetings, and prayers is that the WTS is a dangerous thing. The wolf in sheeps clothing the Bible speaks of that deceives many.
Accept only the truth, and you'll be fine, but make sure it's the truth. The work will be rewarding. You have no idea what a blessing it is that you stumbled accross this site. There are thousands of years experience with the WTS in here. You should give them as much attention as you do the JW's, take note of how much they will discourage you, even condemn you for researching here. BOTH sides of a story give you the big picture. Be careful!