Yes, I did it around a month ago and scored 71. I made a couple of small changes in my essays afterwards but not to improve my score on the test, just something that occurred to me to add.

I agree that this is a good test but I would do it fairly early on in the preparation of the applications (though not before you have your final GMAT score). It's most helpful when you've worked on your essays and feel they're almost ready because there are some helpful questions and cues that can lead to important changes.

I haven't seen any comments in the forums concerning the difference in class size for various schools and I would think this could be an issue when considering what schools to apply to. Harvard has 900 plus students in a class! Surely this affects your overall experience vis-a-vis developing relationships with profs and fellow students, participation in any and all academic or extracurricular activities, and feeling like you are a member of a community. They always ask what you think you can contribute to the school but how much can you contribute personally amongst 900 other students? Any comments?

Yeah. I'm new at this and was thinking of my undergrad classes, some of which had 300 students and more with closed-screen TVs in other rooms. But 900 seemed like a stretch! I would hope that at an advanced level classes would be much smaller.

Good to hear. More like what you'd expect.

Speaking of participation, what are the other ways schools expect you to participate? There are a few references in the apps, even an essay, as to how you expect to contribute to the school and this mystifies me a bit. Are we expected to join clubs or newspapers? Are they talking about sports teams? I know that can be important. The work load is bound to be heavy and what if we don't have time for extra-curriculars?

OK but since they ask about this in the app, I'm wondering on what level this is important to them? Are we expected to involve ourselves in student government or a club? I'm sure these things can be beneficial to the student in different ways but what are the schools looking for with regard to involvement?

I'd like to be able to participate in a couple of school activities, I just hope that I will have the time. I'm still involved with one of my extra-curriculars in an ongoing way and I hear the workload for an MBA, especially in the first year, is pretty intense. But it would be good to be able to do something outside the curriculum. I'll have to see what's available!

Guess you just have to find the time. I've always managed before and it's good to get away from academic studies and mix with other people on campus.

If you get to the interview stage you should definitely have visited the campus, even if its the day before. If you show some familiarity with the campus and other things going on there in general - lectures, drama, art galleries, convocation spaces - this will stand you in good stead.