One thing I like about the beta is the ability to choose your start state. Before, the only choice you had when starting on the ground was to choose a parking spot, then spawn outside your aircraft for a walkaround, having to click on all the awkward click spots to remove bits and pieces before you could get in the aircraft. Now, if you choose a parking spot things are pretty much the same, but if you choose any location other than a parking space -- such as just beside a parking space -- then you get to choose how you start:

I tend to choose 'Ready for takeoff' to bypass all that fiddly stuff. Although it does tend to start with the parking brake off, so I have to be pretty quick on the brake button.
And of course now you can download and install any part of the sim which would normally be streamed -- I don't have the disc space, mainly because I've reserved most of it for astrophotography, but some people are going to love this feature.
The sim is looking ok, I'm pleased with the performance, but still sooooo many issues to be fixed in the future.