Was just looking for better in home or building coverage through interior walls etc.
That's not what beaforming is about.
You don't change the physics in any way.
Its main task is to weaken the interfering signal and at the same time to slightly strengthen the useful one.
Even the industry leader Ruckus adds 3-6 dB of useful signal due to beaforming. For comparison, put the phone on the table, turn on the signal meter. Then move the phone to 1 cm to any side and after 30-60 seconds look at the signal level and repeat this until you move the phone to 20 cm. You will observe fluctuations in the signal level of about 10 dB.
So increasing the coverage area can only be achieved by proper positioning in space and installing the required number of devices.