I was somewhat put off by the warnings in various places that it is a bad idea to try FCOM unless you are very experienced with mods, which probably means being on top of Bash and TES4edit. But maybe if I am hardly using any of the features it will be easier.
The warnings is a bit exaggerated to be honest. FCOM isn't difficult to install,
but it's not trivial either. The installation instructions really have to be read and followed, FCOM is more than just putting all files into Oblivion\Data and activating them. It's not a real warning for not that experienced players - it's more a indirect warning to prevent RTFM candidates trying to install FCOM. That's something which always end badly.
FCOM requires three skills aside from reading it's readme:
- downloading and installing mods.
- getting Wrye Bash installed. FCOM requires Wrye Bash.
- setting your load order with a program of your choice.
From my experience most problems arise from the first and third task. You can't imagine how many people download wrong components like only OOO patches instead of OOO complete, or forget Fran's .bsa files, or using the German instead of the English Warcry .esp ... I guess some giggled as I wrote as required skill "downloading mods". From my experience that's the biggest source of installation mishaps :blink:.
The third task is no task at all - FCOM's readme is very detailed and tells you exactly how it has to be

. Unfortunately some user's attention span is too short to follow it. It is a bit of work, that's for sure, downloading mods aside you need good half an hour if you never had FCOM installed before.
Only people who are completely new to Oblivion shouldn't try out FCOM right away, because if you never ever made anything with mods before, and you have to learn everything, then it's a daunting challenge.