Yes I tried it for the first time last week on a plain grey wool rich twist 8/9 years old never been cleaned before.
Used envirodry to open pile vacced useing Kirby then sprayed and agitated using envirodry. I am not sure it removed as many stains as normall premixed M/S but I might be being more sensitive tham normall.
Rinsed with CFR
Too soon to tell
Regards Michel