I wanted to move my stove from one side of the kitchen to the other. It was only 4 ft of gas line. Sin City estimated $5000+ and wanted to do an engineering drawing on the whole gas system. The competition did it for $300 including pressure check and permits. Then I wanted a tub drain fixed. Sin city estimated $500. The tech came out and left because he didn't know how to fix the abs pipe and made me reschedule. I got a call back my cost was going to be $700 - $1200 for the same job they quoted. They said it would take all day. I did the work myself in 1.5 hours and $100 in materials.
They will give you a time they are going to show up and won't show. Every time you call they are "picking up parts" or "parts are not available". You might see them 3 hours after your appointment.
Even though sin city plumbing has not been able to perform on larger jobs I have used them extensively on shower head changes, clogged pipes, and other minor issues and would not hesitate to call them. Mike is probably one of their best plumbers.