They didn't do urethane for me, they repaired a blowed I-beam.
So far, seems like a fine repair, no complaints. Shared some expertise and advice with me, too.
My experience with them was probably the exception, but they really took a long time to getting around to working on my boat. I mean, months. I was fine without it, but until I started bugging them, and they asked me for "When do I ABSOLUTELY HAVE to have it?", they never even started on it. But, once I did that, they gave me a schedule, and actually delivered ahead of schedule.
For what it's worth.