I spend this afternoon making some research about what SQM really is and all those QOS stuff. Just learned that Streamboost is nothing but a SQM implementation. SQM is a really powerfull and complex tool to manage priorization. See below:
"Examples of deployed Smart Queue Management systems include CeroWrt's SQM implementation, OpenWrt's qos-scripts, IPFire, the Gargoyle router project, and Streamboost . WRED is deployed in many locations. France Telecom deploys SFQ. Free.fr has the first known large-scale fq_codel deployment, using three bands of fq_codel for tiers of QoS. (it is also the largest ECN enabled end-user deployment). The Streamboost product (now coming available in multiple 802.11ac routers) combines a bandwidth sensor, with a packet classification engine, with a multi-band fq_codel implementation."
I'll try playing with SQM tonight and see if I can get the same results I got from Streamboost.