A high-quality WiFi 6E mesh system will stabilize your connection and handle all your devices for years. Buying a reliable setup now means you won't need to replace it when standards change again soon.
Tech manufacturers release new gear every year, which makes the previous version a bargain. Wait for midsummer sales or Black Friday to pick up last year's top-rated hardware for a fraction of the launch price.
The 0% intro APR is not free money, it is a deadline. If you have any balance left after the 15 months end, you will start paying interest on the remaining amount at the standard rate.