It's never crashed on me; it has lots of useful features; it's even wonderful for writing and exporting to HTML; the price is right; the developer is communicative.
But I am removing one star for this line in the description: "All of Cocoa's good stuff", which would be true if the developer had not given up on adding what I consider to be one of the best Cocoa features out there: scripting (specifically, AppleScript of course), even after I had hacked an earlier version so that the resulting build had rudimentary scripting support. Then I'm taking another half star off for ending the availability of the source code past version 2. Apart from those disappointments, it is great software.

What a SHOCK, surprise and delight to see this new UB version. I have ... well, actually HAD been using TE plus for decades, but had given up on it because the non-native version proved to be too slow for my torturous work. Now I'm happily downloading this and need to find all my old scripts and re-install them on my new machine. Thank you Tom Bender, for hanging in there!

"Apple has posted a FAQ answering questions about Final Cut Pro X, missing features, and the future."
And now that faq is gone from the website. If someone finds it, feel free to post the new link. This is just sad.

Release notes (for 3.0.8) available here: http://www2.ambientdesign.com/forums/showthread.php?t=31786

I have used PDF SAM for a couple of years now and have found it to be very useful and stable, although the GUI could not be called intuitive. Once you get the hang of it, though, it's a good standard for splitting and merging PDF documents. And it is very fast.

Just a note that if you have "TextTools" installed (marsthemes.com), you will not be able to save (or close save dialogs) in Tex-Edit Plus (v4.9.9 & 4.9.12). Must be a conflict Text Tools has with the WASTE text engine.