I bought this device as a step up from a plastic Holy Trainer. Actually, I bought two different sizes of this style; a small with 40mm ring and standard with 50mm ring which has allowed us to experiment with the best fit for long term wear.
Sizing: I find the 40mm too painfully restricting so we always use the 50mm ring and alternate using it with the Small and Standard length cage. Both lengths work great. I now wear the Small most of the time and switch to the Standard and Urethral in the house.
Urethral Tube: This is the best addition and makes it stand out from the Holy Trainer as our new long term device. It really helps with hygiene when peeing as well as provide constant stimulation. I tend to wear it when around the house but take it out when going in public JUST because it is literally IMPOSSIBLE to not leak with the tube - like you cannot hold any pre-cum in...
Long Term Wear: Because of the metal, this cage stays really hygienic and we have found it can be properly cleaned without taking it off. It does not chafe and I have easily spent 1+ Week without a single unlock with no problems.
Wearing for Play / Tease: Ok, the Urethral Tube makes this stand out here. erections become much more punishing but my girlfriend loves how easily pre-cum pours out with it in. The gaps make tease more fun for both of us than the Holy Trainer!
Service: As always A+ from HoD! thanks for another great device!