I just finished my playthrough with the Adjustable Party Limit mod, it was amazing being able to have everyone with me the entire time.
If you're looking for a challenge then this is probably not the best option as it makes fights very one-sided but I was playing this time for the characters and story to get as much of the companion dialog as possible. I just made it a challenge to see how few turns I could use to eliminate the enemies, I'd often destroy everyone before they even had a chance to react (after gathering a sufficient amount of my companions that is). There are other mods to make it more challenging but I didn't use any of those as I was okay with the power trip.
Finished my playthrough last night with this mod and loved it, being able to do the final mission with everyone was just perfection. In the vanilla experience, having all your non-party companions (except Jaheira and Halsin) completely absent at the end push is such a bummer.
Finished the final boss with a one-shot (barrels and runepowder bomb

) - accidentally wiped my entire party though the first attempt, good thing Gale had a Globe of Invulnerability.