Ok, since a few girls want to know, I will write about it on the forum.
First of all, personality, you don't have to be a certain personality but when you're a maid its best to be the classic moe. Its ok to be funny or a little sexy maybe (not too much, note I said a little) and you dont exactly have to fit the "cute" image but I don't recommend tsundere, yandere or anything that is extreme. As a maid, you need to respect the goshujin-sama and ojou-sama, meaning that extreme personalities are usually not good especially if that person has no idea what a maid cafe or maybe those personalities.
The experience, overall is amazing. Its so fun to meet so many new people and the staff are all nice and awesome. The customers are also usually awesome, its very fun to talk to them and play games or just greet them even if you're a shy person. I'm not too good with social situations and serving myself but after a while I got used to the idea and it was fun meeting so many people at the con. Many of the girls from the cafe are now my friends and I could have never met such people without the cafe. There are also many chances of even meeting some of the guests since we are well known and a hot spot, even for guests.
I'm not sure if you guys wanted to know about tryouts as well but its pretty simple, they teach you things you need to know about being a maid: manners, costumes, how to do the serving, greetings, and other things they feel is necessary to keep it an authentic maid cafe. Unlike a lot of the other cons with cafes, I think Fanimaid Cafe is closer to the classic maid cafe except some things that they can't control because the convention center is in control of certain parts of the cafe. For my tryout, after the introduction and explanations, we practiced the greetings and then got interviewed by the staff. They were all nice and friendly and so were my fellow maids as well as the veteran maids. There were 3 tryouts last year and we got the results about March I believe.
Personally one of my favorite things about this cafe is the performance. I like dancing so if you like dancing this might be something you want as well. After a couple of weeks, girls are able to sign up for performances and if they get accepted, they get some time on Stage Zero in the Fanimaid Live. There is a pretty big audience for that show and it is always fun to see some of the audience even doing wotagei. (Wotagei are cheers that fans do to pump up the crowd and the performer) The opening and ending performances are amazing. Since all the girls that are performing get on stage, there is so much energy. If you look it up on youtube you will see how much energy! I'm pretty sure this year's live will be very energetic and fun as well.
In conclusion, I regret not joining Fanimaid right when I turned 16. The cafe has grown so much from when I first visited Fanime in 2008 thanks to our head maid, Jun and of course the Fanimaid staff. I think putting myself in the mail list and challenging myself to tryout was one of the best decisions of my life, and I'm not exaggerating. It can be life changing and you'll probably end up with a lot of pride towards Fanimaids. I can easily say that we are the best cafe in the US even if I haven't visited other cafes. So if you're wondering if you should join that mailing list, definitely join! I am looking forward to the new maids!
Hope this helped!