A good mesh Wi-Fi setup kills dead spots and stops your video calls from dropping in the back room. You are buying hardware that should quietly run your home for at least four or five years, so skimping on cheap extenders usually means paying twice.
Networking brands roll out new hardware every year, but real-world Wi-Fi standards change much slower. When new models hit shelves, last year's top-tier system drops in price while delivering all the speed your internet plan actually supplies. A reliable setup usually runs about $350 at retail.
The 15-month intro window is a deadline, not free money. If you still have a balance when month 15 wraps up, the regular variable APR kicks in on whatever amount is left. Set up an automatic payment of $24 a month from day one so the balance hits zero before interest starts.