Be sure the condo will allow you to install your own Wi-Fi. Not all will. Most condos have Wi-Fi, but it’s not strong enough for all the users. Condos also have water and electric together and can be paid via a scan with your thai bank. Since you said for a year, you’ll have a bank account as it’s required for your visa. Just ask a lot of questions at the condo and try their free Wi-Fi.