Persians are not easy to care. You have to brush their hair every day. If you skip one day, don't be suprised to find a knot the next time you brush them. The peke faced Persians have some problem eating. They may get food smeared all over their face, so you need to wipe their face after every meal. They are also inclined to tear more often so be prepared to deal with tear stains.
Persians are not very smart, I have to say, and they are not curious either. They are VERY easy going though. The two Persians I had before never attack human or other cat, even when being provoked. I wouldn't say my Persians were very affectionate. Unlike my current two cats who will actively search for me and want to be with me (more like "on" me) all the time, the Persians I had would just lay somewhere. They would let me pet them, hug them, put them on my laps, or even mess with them, but I can't tell if they enjoyed it or just didn't care. And Persians are VERY lazy after grown up. They are more like breathing furnitures.
Overall, I wouldn't say Persian is a breed I like a lot. They are popular and beautiful for sure, but they are quite different than average cat.