I passed the FSOT recently, but I still have to take the oral assessment. The test is not hard if you have enough information. It took me almost 6 months to prepare for it. The problem with this test is that there aren't many study guides available online or offline. The only one I used to pass the test was a guide (on eBay) created by someone who already passed the test. The guide was full of information. I'm not sure if URL's are allowed here, but here's the link:
http://www.ebay.com/itm/111007222287?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Good Luck