Is it okay to live in 303 on the third floor?

Okay.

The feng shui on the third floor is still not very good. There is a saying in buying a house called "Gold, Three, Silver and Four", the third and fourth floors are the best locations.

Generally refers to the traditional multi-story buildings, the third and fourth floors avoid the dampness and lowness of the first and second floors, and the fifth and sixth floors or above are higher and inconvenient for the elderly and young, so they are usually the most popular and the best-selling ones. The most expensive, so they are called gold, three, silver and four.