Just bought it a day before a patio party, last Wednesday 5/2/18. Assembly instructions were clear and helpful. The unit did an excellent job in keeping a big party of folks warmed. The only thing negative to say is that I called customer service four times. Each time a recording indicated that they were unavailable and would call me back within 24 hours. I am still waiting, though I don't need them anymore. Poor customer service if there is a problem.