NOT FOR THE CASUAL GAMER!
After playing several hours with a woman in a flower store, I've been confused, annoyed, and I learned about 2 things about selling items, and most of the time those don't work. Of all the Sims games I've ever played, this one is the most confusing, and someone needs to make a FAQ and quick.
Either way, I don't like the business idea because you can't use it other than for jobs, and to make money, it's not very expansive, and it merely replaces real jobs that Sims could make WAAAAY more money without you killing half your brain cells and Sims losing moods and aspirations like crazy. There is little new content too, or else that content just relates to businesses or is mostly pointless.
I think I made a profit of $100 in 10 days with the business...no wait, it was more like -$1000! I usually get games easily. Not this time. I hope you're ready....