Because there is no evidence of a legitimate tool with this name, a "full review" of a free version cannot be provided. It is possible that this term is a:
Top Free Resources for SSQMIXXForce
Issue 2: The Mixx Engine Stops at 250 queries
Scan Everything: Run any downloaded files through an antivirus or VirusTotal.
SSQMIXX Force Free seems to relate to a specific product or service, possibly within the realm of audio equipment or software, given the nature of the name. Without specific details, I'll create a general write-up that could apply to a product or service by that name, focusing on what such a product might entail and its potential benefits.