I'm wearing 24/7 for almost 4 years, both peeing and messing only in diapers. Here's what has changed since I started:
>noticeably faster sensation of bladder urge, probably due to lower bladder capacity
>ease of wetting in any position, place and time without effort or focus on it
>sometimes it happens during the day, that after a sudden feeling of urge to urinate, I feel that the sphincter itself involuntarily let it go. Seems like it's similar to the symptoms of OAB with incontinence, but it's rather episodical thing, like once a day. It intesifies whet I drink a lot, especially something diurethic.,
>for several months now, most nights end with a wet diaper in the morning, where I do not remember in any way the moment of wetting.
The last two things happened occasionally until recently. However, six months ago I followed a trick, posted probably on DailyDiapers, to which someone linked in a previous thread. It involved compressing and massaging the bladder in a manner similar to cardiac massage. For the first week, maybe 10 days, I repeated this every day several times during the day. Since then, I usually repeat it once a week, unless I forget.
In fact, in my case it gave noticeable results. I feel the push even faster, there came involuntary (but conscious) wetting during the day, and most nights are wet. Currently, the only sure way to have a dry night is to very strictly limit drinking before bed, or even dehydrate myself, for example, by drinking alcohol in the afternoon.