Modthesims.info is another great website, and shouldn't conflict with any of Twallan's mods (I've been using them along with Twallan's mods quite a bit, though it's been a while). They test every bit of their content as well. However, if for whatever reason, you decide you don't want to use mods, still check them out. They have Wiki articles with helpful tips, along with some CC free lots and downloads.
Some on modthesims might conflict with some of Twallan's. Modthesims is a bunch of different mod creators on one site. If you download Twallan's Story Progression, don't download a Story Progression you find on modthesims.
Just do your research and take plenty of back ups before you install any mod just in case. But that should be what you do for every mod you install. Just so you know what the mod is supposed to do and if there are any common bugs you should watch out for.
The site I linked above (Mod the Sims) is a very respectable site and has a lot of knowledgeable creators. However, I don't really know how quick they are with updates to their mods because I don't use them. Someone else might be able to give you a better understanding of this.
How fast the mods on that site update is a bit of a guessing game. There are many different mod creators on that site. Some might update just as quickly and reliably as Twallan. Others may never update for whatever reason. And you generally won't get as much feedback as you get with Twallan, but you might occasionally come across a mod creator on modthesims who does give frequent feedback on the progress.
The title says it all. I have a stable well running game but I'd like to try things to make my game different and better.
I'm looking for suggestions for a starting point.
I concur with Hosfac's questions about asking what you're looking for in a mod. New game play or make your game more stable.
Twallan has several mods for either answer.
For stability, I recommend reading up on: Overwatch and Master Contoller (along with the Cheats Module so you can access things like Edit in CAS when Sims don't age up and get their trait)
For game play, I recommend reading up on: Story Progression, Master Controller (along with the Integration Module so you don't need a dresser and mirror to plan your Sims' outfits)
If you scroll down on the page Hosfac gave you to NRass, Twallan has posted a short summary of what each of his mods does to better help people decide which mods are right for them (if any).
On Twallan's website, he has written:
EA has since corrected the Interaction Injection error (they did so a number of patches ago apparently).
I will therefore be dropping that warning off all applicable mods. How kind of EA to correct that issue.
So you don't need to reset everything before uninstalling.
That's nice to know, actually. I had installed one of Twallan's injector mods and dreaded remembering to uninstall it properly before I installed the patch or Showtime. Nice to know I won't need to do that anymore. Or at least any past this time.