The short version
Lam Luk Ka is an outer eastern suburb of canals, housing estates, local markets and industrial roads. It is for people who want a larger, quieter home and whose daily destinations are in the north east. It is not a sensible choice for a central Bangkok commute unless the schedule is unusually forgiving.
The district is too large for a single neighbourhood judgement. Khu Khot and the western edge have the best rail logic. Further east, roads and local buses take over, with shops concentrated along main corridors. A car is useful for school and shopping runs, while a motorbike handles short trips more nimbly.
Verdict
Lam Luk Ka can be comfortable if you embrace the suburban routine. It will disappoint anyone hoping for a station led urban life. Check the rainy season route, the estate entrance and the distance to everyday shops before choosing space over location.