If you do, my recommendation would be to avoid MGSO, specifically it is a selection of one preference, but like all Elder Scolls games, it is better to customize to your liking. It's also good to know what the base game has in it. For the longest time I used a mod to 'fix' the combat system because I didn't like how Bethesda set it up. I got to a point where I felt that the enemies were overpowered, it was because that mod broke the core function of the game. I recommend leaving the combat as is. It's frustrating when you start, but oh so rewarding mid to end game. My favorite games of all time are Morrowind, Fallout 2 and New Vegas if that says anything, and I'll be playing Morrowind again very soon
I definitely have over 1000 hours in it and most of that is from the last few years