This product has serious drawbacks:
Cons
1) No buzzer/alarm sound for mains on/off.
2) Low voltage output comparison to non sine wave inverter.
3) More heating thats why fan running frequently.
Pros:
1) Realtime status display of battery charging/discharging.
2) Silent i.e no humming sound while charging/discharging
3) Input voltage fuse is replaced by MCB which is a smart thing
Overall product is ok but the main concern is low voltage output.