Few comments you might find useful..... Last night I attempted the IFR flight KBUR-KLAS Route: VNY9 DAG CLARR2 FL270 ( filled, FL250 flown) in CRJ2 by Javier Rolonn for X-Plane with real life callsign N8836A.
Take a look at PEaware
http://peaware.pilotedge.net/flight.cfm?id=25326
There were few things that caught me off guard, I managed to successfully finish the flight and visual approach rwy 25L but maybe you find my notes useful to avoid the nerve wracking I was exposed to by my own choice.
1. I used the new callsign, real life registration number for on of the CRJ2 I found on Flightaware. Before, I was using N8383T exclusively and got used to it, now I had to look at the little sticker in front of me while reading back ATC instructions. Not SUCH a big deal but definitely a contributor to the complexity of the flight.
Note 1: be aware that using new call sign will slow you down and distract your attention.
2. CRJ2 by Javier Rolonn is a great jet and it has functional FMS which I programmed faithfully using VNY9 SID, rwy 15 for take off and CLARR2 STAR. I filled my flight plan ( online via PE website, worked as a charm

)
I denoted weather information Yankee for BUR, set altimeter and called Ground for taxi.
So far so good. I was cleared for take off and then the little or not so little problems started....
I had NAV source set to FMS but I had to fly headings given by Controller.
3. I have no idea how to solve that but I am having a very hard time making autopilot to start flying the selected mode, SPEED mode does not work, after take off at about 600 AGL after retracting gear, I engaged autopilot and selected VS mode.
I had to reduce the throttle and retract flaps in order for autopilot to start flying the plane.
I finally managed to get the somehow stable , very low speed climb following Controller instructions.
4. When I finally was cleared to proceed with VNY9 departure, I switched to NAV mode.... nope, autopilot was trying to fly to the first waypoint of the VNY9 departure.
I switched back to heading mode and used HD trying to follow VNY9 departure path, I have tried to DIRECT TO on FMS and engaging NAV mode again, no luck, autopilot was flying not what I expected it to. So I went back to HD mode trying to watch the climb, VNY9 path and maintain ATC interaction.
I was very nervous and chaotic , see the path
http://peaware.pilotedge.net/flight.cfm?id=25326
Note 2: make sure you practice use of autopilot , FMS and switching between different modes before you attempt to fly on PE, make sure you know how to manage these things, it will save you a LOT of frustration and headache not to mention embarrassment.
Then it was time to fly CLARR2, I had the waypoints programmed into FMS so I could see them but I has zoom set to to high, 10NM so I could not see other CLARR2 waypoints, I was instructed to cross CLARR at published restrictions for altitude and speed which I did but I had to open the CLARR2 plate very quick and compare it to waypoints programmed at FMS.
CRJ2 has no auto throttle and it was another factor to make the flight harder, after you descend to a assigned altitude, you need to gradually increase the throttle to maintain the speed.
Note 3: if you are flying SID or STAR, make sure you have the plates immediately available for viewing and better yet, try write down or memorize the most important parts like altitude and speed restrictions.
Then I was cleared for a visual approach RWY25L.... cool but I was way too fast, I had to extend the downwind leg enormously before I was able to report turning base 500 miles from LAS ..
I finally descended to almost TPA ( which I did not write down and had to look it up while trying to descend and turn base), configured aircraft for landing and .... landed.
Note 4: Write down your TPA ( Traffic Pattern Altitude) and configure your aircraft for approach and landing early enough.
I finally taxied to park and shot down the plane.....
There was A LOT going on during that flight, I ended up with a little headache and I completed the flight ( even the passengers did not complain but one asking me after getting off why I got so close to the mountain before making left turn to base...

).
Flying the plane I was not ready to fly with confidence along with pretty intense ATC interaction and mistakes listed above made the flight very close to a failure.
The only thing that stopped me from just quitting was the feeling that I HAVE to finish the flight somehow, no matter how many times I repeat "say again"

and how embarrassing it will be in the eyes of the Controllers watching me struggling during this flight.
I wanted to say thank you to the Controllers on that flight for being patient with me and violating route requirements many times.
What I am going to do... I am going to fly that flight offline and MAYBE figure out how to get back to NAV mode after being vectored.
Overall, incredible experience thank to fantastic PE service. PE is the BEST!
I am not ashamed to admit my mistakes and post them here, this the process of learning and if anybody can find my long post helping in any way, I did not waste my time ...
Cheers, AJ