My dad used to use silicone caulking, and it smelled horrible! I had to leave the area for hours until the odor had gone, because to me, it was unbearable.
Acrylic latex caulk smells so much better than silicone caulk. I had been living with small gaps around the baseboards for years, because I did not want to use silicone caulk, and I thought that was my only option. After finding out about acrylic latex caulk, I finally was able to fill them.
The paint covered up the caulk perfectly. I had never seen caulk that would hold paint like that before. Now, I use it whenever I have a gap pop up.