I've been using it since it was released, and so far I really like it. Some of the things to comment on though:
The new simulation graph output, though I suppose is more flexible in letting you manually examine any portion of the graph, seems to be a little more trouble than it's worth to get everything sized right, especially since dragging a selection box to the corners of the graph area doesn't stop the selection field, so you can end up selecting areas that you'd really never care about (negative times, negative altitudes, etc).
Something that's been present with v8 as well, but it seems that, by default, my program always opens minimized, but still taking up most all of the screen. Normally this wouldn't be a big issue, but if I don't remember to maximize the window again, or don't remember it's minimized, my natural method of exiting the program is to scroll the mouse all the way up to the top-right corner and click. This works if a program is maximized, but often I'll forget, have another window (Firefox, etc) open underneath RockSim, and end up closing that instead. Wish it would start maximized by default...
My program crashes whenever I try to open a file by saying to open the file with RockSim (as opposed to opening RockSim, then opening the file from the already-running program). It gets as far as loading the window, but when it tries to import data, it encounters an error and gets shut down by Windows.
The 2D flight profile does not load the sprite files it generates, instead continuing to retain the default basic rocket design.
The default background image for the 2D flight profile is a dead file link, but it's easy enough to go find a proper file in C:\Program Files\RockSim 9\Backgrounds
Other than those few minor things, I've really enjoyed playing around with pods. It's a nice program.
