I bought the Polo, because I find patio heaters really great. With us, it is unfortunately often sit to cool the outside in the summer. But I was annoyed these giant mushrooms. Simply look not good. The Polo is there much less noticeable and can overwinter even without much trouble in the garden shed. No idea what for some is there with the assembly going on. I thought it was actually ok. The instructions I found really more than average with 3 D images. Funny. Perhaps there is indeed different versions. The only disadvantage and question Enders: Why is the little more expensive than many a big ??