Doesn't matter what simulator you get. Look at the fundamentals that you are trying to get. Long before I got my Instrument rating, I practiced and practiced on Microsoft Flight Sim (All Versions). Now that I teach, I really enforce the use of the flight sim. It's not about how current the database is, it's about shooting the approach, partial panel flying, getting used to interpreting the information the instruments are giving you and making the best judgement. I tell all my students, get the book, read up on every approach and then go to airnav.com and try to shoot a similar approach 10 times. Each time reduce the ceiling and visibility until you get to the approach minimums. Then try to find a similar approach at a different airport and shoot it at minimums. I've never had a student fail a instrument checkride.