Huizhou's disadvantages are also quite obvious:

1) Winters are warm, but summers are really hot. Shenzhen can go from underground garage to underground garage, and the subway's air conditioning is so cold you need to wear a coat, but Huizhou can't. If you go swimming or take a walk by the sea, you'll get sunburned in minutes. Additionally, there are a few very humid days each year.
2) The business environment isn't that good, for example, the fruit stand's scale, a 500ml bottle of Yibao weighing 700 grams, that's considered an honest merchant.
3) Too many mosquitoes.
4) It looks close to Shenzhen, about an hour's drive. But during holidays, the Huizhou-Shenzhen coastal and Shenhai highways can be clogged with traffic. Not to mention Huizhou, once I was stuck for four hours returning from Dapeng to the city center.
5) Construction sites and road repairs are noisy every day.
6) Healthcare is lacking.
Apart from the above, the advantages are:
1) The overall climate is better than over 90% of domestic cities.
2) Infrastructure is better than over 80% of domestic cities.
3) Rental and purchasing prices are very affordable.
4) For non-high-frequency needs, you can enjoy the amenities of Shenzhen/Hong Kong (such as international flights).
5) Entertainment activities and living costs are over 50% cheaper than neighboring Shenzhen.