Pros:
-Very well packaged (Protected from shipment damage)
-Fairly easy-to-follow assembly instructions (IF you're use to assembling objects).  I purchased two:  First one took just short of 2 hours to assemble; the second, just over 1 hour.
-Much more attractive and interesting to look at than the patio heaters with the propane flame at the top of the unit.
Cons:
- Numerous metallic sharp edges that could cause cuts while assembling- so be careful, and take your time!
- While the unit is attractive, it just doesn't put out the level of heat that you can achieve with the patio heaters that have the propane flame at the top of the unit. (This is primarily the reason for the 4-star rating, rather than a 5-star.)  With its design, this heater would probably radiate heat better if its height was about 6-12 inches shorter overall.