The gouge on AviationInterviews.com is spot on. Very nice people, very friendly and relaxed atmosphere.
First was the overview of the company with one of the interviewing captains for us. Then, we took the Wonderlic test. You can google it and prepare for it if you want to.
For instrument written, review the basic instrument procedures - they seem to be big on holds. There are a couple of questions on hold entries on the written, and you'll do a couple in the sim.
They'll take you to get fingerprinted and then you'll wait some more.
The interview with the captain and an HR rep was a very pleasant experience. Just be yourself and BE HONEST! Don't try to BS them. The technical portion is also spot-on. I was asked about electrical system and also the hydraulic system... some approach plate questions such as highest point on the chart, MSA how far?, then they'll have you finger fly an approach, and ask some questions along the lines of say how far out do you go before starting a procedure turn. How do you figure out a VDP on an approach? After that, they'll kick you out of the room so they can talk about you behind your back.
A few minutes later, they'll tell you if you get to continue on to the next round - sim.
Sim is a desktop. Same gouge as on aviationinterviews.com. I think my approach was Islip ILS 6 approach... basic instrument skill. The captain running the sim was also a VERY nice guy... very friendly and helpful. He'll ask you where you are in relation to the VOR (they use the needles, no HSI/RMI), you'll do steep turns. You'll do an approach to missed... you'll fly to the VOR on the missed. He'll ask you about the entry... then he'll give you alternate hold instructions and you figure out while flying the sim what kind of entry you'll do... you just tell him the headings you'll fly and that'll do.
Then they'll get you a cab at their expense to get drug tested and from there, to the airport for your flight home.
Took about a week to get called for a class. They give you conditional letter right after your personal interview, but it's conditional on passing the sim, evaluating test scores, final interview board notes, etc... you really get to find out if you were successful if they call you offering you a class. If you're not successful, you get the no-thank-you letter in the mail.
All in all, they're trying to hire competent people with GOOD ATTITUDES. To sum it up - RELAX, review your instrument procedures and hold entries, bone up a bit on weather, review your last airplane's systems (nothing fancy, but just conversational), review your Jepps, and most importantly... BE HONEST AND BE YOURSELF!
I'm really looking forward to the class. I indicated I was willing to go earlier if there's an opening sooner, and I really hope I get to go sooner.
Good luck!