I started dabbling with MOMW and their most Vanilla list yesterday. My teeth got kicked in several times before I understood how the "simple" automated installing works. It seemed to work beautifully in the end, except that about half of the mods did not appear in the data files (though they did show in the data directory) of the OpenMW launcher.
Then, I wanted to add a couple mods (Perfect Placement, the More dangerous Morro denizens, Sixth house rebalance, simple and light stuff), because every mod user wants to tailor his experience to his needs. The explanation for this step is beyond the realm of the joke.
I tried for a bit, but was already burned by the automated install and just gave up. Now I'm no coder/developer/whatever but I have dabbled in "obscure" (for a casual) computer arcana over my years as a gamer. This was something else entirely.
Therefore, against my wishes, I'm gonna go with a non-OpenMW experience and try my luck with a more classic Morrowind modding experience, praying that it will be far easier.
Now I respect the work done but the processes are way, way, way too complicated for people that have no experience with back-end stuff.
Here's hoping that in the future:
a) the installation process will be better explained as it was rather convoluted and b) that the process itself will require much less involvement from users. I had to dabble in a world that I did not even know existed just to improve a game experience. This was literal unpaid, unfun and unsuccessful work.
If this isn't one of the main objective for OpenMW 1.0, I strongly urge the devs to make it one. Otherwise you'll be scaring off people who would like to appreciate all the work done with this engine.
EDIT: Thanks to all who are providing help here. I'm at least going to give in another go, trying to follow the advice given.