Whenever I buy anything these days, I always do a Google search for
problems. Like "TC Electronics G Major Problems" gives you thousands of hits you can browse through and read about it.

I learned my lesson years ago when I bought an Iomega Zip Drive.
A year later I found out about the 'click of death' by doing a Google search for 'Iomeg Zip Problems' and realized I'd bought a royal lemon that destroyed 100's of MB of stuff I'd stored. The company eventually lost a class action lawsuit because of it.