I respect the fact you guys are doing the best to make your service popular but i dont see any reason why myself and others will leave long-existing bitcoin tumbler like Blender.io that offer service fee from 0.5% to 2.5% and make use of a mixer company created last year and offer see ice fee of 0.5% to 5%.
But for the review i also recommended loyce and Darkstar
You never know, and in my opinion it's better to have enough options with these types of services in as much as their long-term goal is to provide better security and remain in service, we've had multiple long-existing bitcoin mixers either getting seized by some Agencies or Exit scamming, which led to some thinking mixing might eventually go extinct.