I have the Stainless Steel 5.75" version, circa mid 90s, because it's heavier than the Titanium versions it doesn't cycle the action on an unmodified G19.
An advantage is reduced FRP because of the decreased the blast chamber size compared to larger suppressors.
AWC sold it to me with a separate Recoil Regulator module, so it can be configured single or semiautomatic.
I'll be testing it against a 5.07" AAC Ti-Rant 9S within a few months.
Here's my range report, ordered from least to most suppression;
Spray M-Pro 7 cleaner in first three chambers of thread end (5cc) - lasts 2 rounds, sprays
Spray WD-40 Specialist White Lithium grease in first three chambers of thread end (5cc) - lasts 3 rounds, vapor, no spray
Dipped in water, drain for 10 seconds (?cc) - lasts 2 rounds, sprays
Solid Mobil 1 non Lithium grease in first three chambers of thread end (5cc) - lasts 5 rounds, smokes, no spray