I have a 2016 9'6" stream and my girlfriend has a Hala Atcha. One con i see in the Stream are the non-standard WW 2.5" fins ($25 apiece). The biggest difference between the Stream and the Atcha is the lack rocker and squared off tail of the Stream. This causes quite a bit of drag compared to the Hala. Girlfriend always flying past me on the river. On the plus side the Stream has two extra grab handles on the sides which come in very handy. If you want to surf also you should consider the C4 Waterman.