Work is done in power plant/refinery settings. 100% travel to whatever region of the US you are assigned to. I was assigned to the Gulf Coast region working in Texas, Louisiana, and Mississippi. The work was never too strenuous but the elements given the time of year are what can really get to you if you're not dressed properly. Job was basically to be a glorified parts changer on million dollar equipment. Pay was great, per diem was $100 per day for me, and the benefits package was pretty good. I'd still be with the company if I didn't miss family too much to be on the road for a month at a time.