My sons and I assembled the 5.6Xterra elliptical by ourselves. This one seems to be the sturdiest in the price range we were looking to buy. We all were thrilled with this product. The way it was shipped was unbelievable! We tested many elliptical trainers before settling on this for the family. I tried the elliptical after we put it together, and for the money you really can't beat it. My wife and kids have used it every day and they want the old man to lose a few pounds…..so I guess it’s my turn!