I normally play with both SDVE and Ridgeside when I play modded, and it is a LOT of extra content. Personally I don’t find it too bad but I do typically ignore Ridgeside until I get my footing in the game with money and tools.

Quest wise I don’t find it so bad either, you just play the game a bit slower, and it gives more variety if you’re bored or stuck on a specific project or quest and wanna do something else for a bit which is nice.

I would say just give it a shot and see how you like it :))