What are the advantages and disadvantages of Italian immigration policy?

Hello, what are the advantages and disadvantages of Italian immigration policy?

Advantages: 1 Immigration costs are low. 2. The treatment period is short. 3. The rental rate of real estate is high.

Disadvantages: 1 Hold residence status, can't work, and the property can't be sold at will; 2. The purchased property must be residential, with a per capita area of not less than 22 square meters; 3. Proof of non-wage income of 40,000 euros must be provided, and the trial is very strict; 4. to change to permanent residence status, you need to live for 4 years and 2 months within 5 years.