It's a nice little heater. I do mean little though. I would love to have a larger version of this type of heater for our back patio, but we (thankfully) have a roof for the patio. Roof is only about 7' tall, which is a no go for a big heater. A smaller version, like this, will have to do. And it does. It sits on a table top, of course, and you really need to be right beside the table to stay warm on a cool night. For that, it does the trick. It's nice down to about 50 degree weather (right next to it). Below that, and you really want a higher output heater. This heater works well and does what it should for an 11K BTU heater, but understand what you're getting. We actually have other higher BTU heater when it gets really cold, but this one serves it's purpose.
Assembly wasn't too bad. The base weight is a bit of a pain, but just turn the whole thing upside down to attach. And if you plan on using it regularly or for more than a few hours at a time, get an adapter so that you can attach it to a 15-20 propane tank. They're cheap and well worth it for this heater. The 1 lb tanks don't last long.