Other than LDA's (I'm chicken) I've been known to pull 'em apart all the way....
Nothing to it, once you've done it once or twice.
That said, have a manual or other instructions (or a friend) handy. Lots of little bits in the drop safety that are a little different and may not be in the usual manuals.
You can pop the grip safety and MSH, and get to most of the critical parts in the frame - including an LDA. Some spray degreaser and spray lubricants will do a fairly good job on the goodies in the frame, without actually taking them out. DO re-lubricate everything later.... Spray oils (I like Rem Oil a lot) can do that. Just not WD-40!
The slides are simple enough (assuming you've got some info on the way the drop safety works) to pull apart. IMHO, the PXT needs to be removed and cleaned (and re-lubricated) every once in a while. The tunnel gets dirty and that may slightly interfere with the extractor. Likewise, the firing pin tube needs a Q-tip (and a pipe cleaner) once in a while too.
The 1911 was originally designed as a throwaway. To be made at the lowest possible price on tooling (and with materials) that existed at the time. They're designed to be repaired by a cook detailed as a truck driver using parts from battlefield pickups. It's not rocket science....
The Colt drop safety and Kimber's Swartz (also used in Llamas and S&W's 1911's) are additional complications that require a bit more care but given that you can't get a Kimber rear sight off anyway (necessary to work on the Swartz safety) without a jackhammer, it's a non-issue if you don't lose the little pin in the frame. You can still manage to damage the pin in normal "just take the top off" cleaning. (Pre-Series-II Kimbers don't seem to have their rear sights on quite as tightly. Or at least mine didn't....)
The LDA and similar strangeness is another story. Para's PXT is a little more complicated, but is also a drop-in. If you don't break something you won't hurt anything. I would suggest NOT taking a PXT apart without some serious care - there are a few little parts in there.... That can go flying....
Regards,