In general, the quality of permanent numbers is better than normal numbers, users have experienced fewer problems in use. Higher quality and permanence and less restrictions also cause its higher price.
The pricing of normal numbers is based on the variability of countries and their laws, the difference of telecommunication operators and the different costs of each of them. Therefore, the more expensive number does not necessarily mean higher quality. For example, if four types of UK numbers were available for Telegram, it does not necessarily mean that each of them has a higher price and a higher quality, but this issue is completely variable and depends on the type of number and software rules, and your user experience is more important than the price. It is numbers. But in general, some cheap countries like Russia, Kazakhstan and China have lower quality; Because the number of using these numbers is much higher and different softwares are more sensitive to these numbers.
For Telegram, numbers with stars have better quality. Because there is no report and they have the ability to send messages to people from the beginning. Telegram is less sensitive to them when launching, and the probability of blocking is low. Of course, numbers without stars will not have any problems if the principles are followed. But they are somewhat more risky.
Try not to use cheap countries like Russia, Kazakhstan and China for WhatsApp. The excessive use of the numbers of these countries has made WhatsApp more sensitive to them, and the number is more likely to be blocked by WhatsApp.
For other services, there is no difference between the numbers. Unless the desired service has a special limitation or sensitivity.
In general, observe the principles of launching software, such as that your IP is compatible with the IP of the desired country and do not use a shared IP, use versions of software that are less sensitive, such as old versions Official Telegram and so on. These principles are more important than the chosen country. But the numbers of countries are different in some cases and some have better quality. Over time, you can get user experience according to the type of use you have of the number.