Buying cheap is the inverse square value of the inconvenience when things go wrong.
We have had another 2 major blackouts in Manly, Sydney in the last month. The $4,500 I spent on a UPS (Uninterruptible Power Supply) it's worth every cent.
Personally life is far too short to rely on cheap Chinese shit.
VICTRON, SMA, SCHNEIDER ELECTRIC, and it appears other major brands, have very quietly moved their manufacturing to China.
Personally, life is far too short to overpay for products that are of similar quality.