I haven't seen a single credible review of this product, so here's a moderately-detailed look at Panel Builder 2.4, from Simplugins. This is based on a walk-through of a prototype panel for the Aerosoft Catalina.
UPDATE 16-03-13
I noticed there was a 2.41 patch release that addresses some of the issues mentioned in my review, so I went ahead and installed it. The VSI now works out of the box and the MAP guage has been fixed. The CHT guage now has graduations (tick marks) but doesn't seem to work properly when you set it to fahrenheit. There is a new Carburettor temperature guage although, as I suspected, it doesn't work with the Catalina, which presumably has its own internal model of carb temperature.
You can find the update on the RC Simulations web site (if you look hard enough) or on the SimPlugins web site. The lamentable 'technical support' has not improved. ... https://www.youtube.com/watch?v=ej-LNccWSeg
There are many reasons your screen recording may not include sound, but this video addresses only one of them. It is a reason that will no longer be relevant unless you are still using iOS11.
Most people complaining that the fix in this video "doesn't work" are seeing some different problem, which is most likely that that app they are trying to record doesn't allow the sound to be recorded in the first place. In other words, the screen recorder produces a video file with a blank audio track. Of note this is true of communication apps such as FaceTime, Zoom, Webex, etc. and it is to make casual covert recording of conversations more difficult. In case it has to be said, if iOS didn't record the sound, there is no way to "get it back".
This video addresses a very specific problem, which was that the native screen recording introduced by iOS11 initially used HEVC (a.k.a. H.265), a codec that most legacy editing software (and many media players) doesn't understand. The video tells you how to fix it by re-rendering the video with a legacy codec. To do this you need a video editor or converter that can read HEVC-encoded video and write using a legacy codec such as H.264. Splice was one such app, which at the time of making this video was free (it now requires a subscription). There are other apps that can do this conversion.
It is worth noting that the Camera app still records in HEVC by default, although can set an option to transfer videos in legacy format, which takes care of the conversion for you.
...
https://www.youtube.com/watch?v=4inMJRoTuvk
A closeup of the Aerosoft Twin Otter Extended focusing on the electrical system.
ADDENDUM
I have discovered that manual ignition does appear to be simulated. If you switch off a fuel boost pump and then switch it back on when the engine has stopped, the engine restarts.
According to the manual intake icing can cause a flameout. This would suggest that manual ignition is useful when flying in icing conditions. (I have not yet verified this.)
The fuel pump anomaly is a bug. Aerosoft has fixed this with Hotfix 4, available from http://forum.aerosoft.com/index.php?/topic/84897-hotfix1-4-complete-for-fsx-updated-2015-04-15/
...
https://www.youtube.com/watch?v=JAjuXOhfsBk
Absolutely the best guitar I have ever bought, a beaten-up nineteen sixty-something Harmony 1203. Playing a bit of Sportin' Life Blues by Brownie McGhee, copied from a Dave van Ronk arrangement. Apologies for the autofocus.
...
https://www.youtube.com/watch?v=4MDRMfeqHd8
Stromberg-Voisinet parlour guitar, 1920 or 1921 vintage. Like a wrinkly old walnut! Here played in standard tuning then open G, but a semitone below concert pitch.
...
https://www.youtube.com/watch?v=ueOVcWwNG4U