I've had a Loggy Biou and it was the best one I've ever had. It got old and was very squeky so I sold it. I have a gorilla now.
It's not by far the heaviest (homemade one) or the lightest (loggy). It is VERY functional climber and med weight. Easy to keep iin the tree and is silent with the provided straps attached to the tree. I would recommend it to someone not wanting to spend more on a loggy.