"Very compatible and stable" doesn't quite jive with OSnew's reviews regarding Pegasos and MorphOS (i.e. Eugenia Loli-Queru's review(2003-05-19)?
Understandable. You can't go on a aminet downloading spree and expect to find everything compatible. People might even need to refine their definition of system friendly.
There's plenty of software out there that appears to be system friendly and some of it varies on just how system friendly it is. The CIA's aren't there and as such neither are the resources. There is no audio device redirector either. Anything that relies on either of those will most likely fail to operate or do so poorly. (This applies to MOS 1.3... Don't know what's been implemented in AOS4.)
A perfect example is one of my favorite wb games on my Amiga machines.. Soliton. Technically, it works under MOS.. But it is unable to generate random numbers due to the method it uses. As such, the game is the same every time you start the program.
My uptime isn't terribly great right now.. I reset the machine a couple of days ago after I installed the poseidon update. Before that, I was at 5 days. YMMV.
PS; My point of reference in regards to AmigaOS usability and stability is a Birdie/VisualPref/AmiStart/StackAttack/Executive enhanced AmigaOS 3.9**.
MOS has something similar to Birdie/Visual Prefs. Last time I tried, AmiStart failed to work. StackAttack isn't needed.
Can't really think of anything I miss from 3.9.