Testing and Research
When you decide to buy one thing, you need to research on it first. But even before that, you have to know your needs. Do you really need it? Is it a necessity or just a want? Decide if it will benefit you or other people. If it will be an investment for the future, or an asset to help your business or whatever you do grow. Just like in choosing internet, you need to know the reasons why you are installing it.
Where you are installing it (like your location because internet signal is vital), its costs, installation costs and fees, and other things. After which, you need to test it first and see if it really fits you and your needs. A wlan access point test will likely to help you in this area.
Test for it for a couple of hours, even days, and see if it really works well for you. If not, you might want to decided on choosing another or be open to other options in the future. Remember, in every purchase, you do not just invest effort and money, you also invest on time which you cannot take back. Better to test its probability and its limitations than be frustrated in the future because it lacked initial research and test. Thanks and good luck!