The SVS for $500 is a respectable sub and has a nice app to use with your phone or tablet. You can also greatly better it by the REW program downloaded to your computer, and buy the mike it recommends for around $100 then you can totally fine tune your room it takes time to practice and learn but you can accurately
fine tune your Bass , at some point buy 2 subs it’s far easier to eliminate nulls in the room and you control its output it just blends much better.