VERY LOW SALARY WITH HEAVY DUTY TASKThe good thingsGain a lots of experience since you need to do every job by your own. From close sales to designing, go to site visit, do the details drawing, cooperate with contractor/installer, check the defect, until the handover.
The challengesVery low salary for a degree holder with high life cost. Second challenges was, so hard to get a walk-in cust. Working from morning till dawn. No one will notice your sweat & tears. Plus toxic environment.