I'm early 40s and have now been locked in a (knock-off) CB6000s with an official replacement A-ring for 5 nights. I'm getting a little bit of heat in the skin at the back of my scrotum, where it is being rubbed by my thighs as I walk. Beyond that, things are so comfortable it is barely noticeable that I am wearing anything.
The reason then: nothing interesting or exotic. I suppose there are many strands of the chastity family, from the wild and outrageous to the mundane, mine is definitely the latter

I've been a compulsive masturbator since I was about 7 years old. Generally once or twice a day, sometimes more. I became adept at self edge-play, keeping myself turned on but not going over the edge. This had an unfortunate consequence in that if I went to bed late, or woke up early there was never a thought to rolling over and getting some sleep, there was always some fantasy time to be wasted, leaving me fatigued the next day... rinse and repeat.
I'd played around with chastity, buying a couple of knock-off China specials (a birdcage and a tube) from Ebay. The tube was so cheap the solid end jammed in the thread after a couple of uses and the hinged nature of the padlock fixing meant it pinched skin as it opened and closed under movement. The cage was better, but was so large as to be impossible to conceal and also easy to pull back out of... It was useful enough in tandem with bondage play, but useless as a standalone device.
So, back to the matter in hand (or not as the case may be). I'd discussed chastity devices with my wife, it wasn't something she was interested in. Certainly not any of the "chastity porn domina" machinations we hear so much about. The cage stayed in the back of the drawer with infrequent self-administration. Over time I began to realise that my habit made me unhappy. I felt like I was cheating on my wife, with Madam Palm and her five lovely daughters and asked for her help to change that.
The dynamic then is nothing to do with being punished, or denied, we both agree that it makes for a happier household and a nicer me if I am not constantly playing with myself. But what about the countdown to when I get to have my orgasm, I hear you ask? Short answer: there isn't one. We aren't the most active of couples in the bedroom currently, so you won't be reading lascivious tales of tongue lashings and all that carry on (not that there is anything wrong with it). The deal is, if she wants it, she unlocks it, if she doesn't, she doesn't. Nothing more complicated than that.
What? you have agreed to indefinite denial, without any breaking in period, or negotiation? how lucky / terrifying / "insert other adjective" for you... It feels natural for us. There is no need to have a calendar with a circle on a date, or a countdown timer. It is either locked or it isn't. The decision, very positively for both of us, is out of my hands.
There will be quick 15 minute shave breaks every week or so, to avoid rashing and ingrown hairs as much as possible. beyond that, who knows? My preference would be at some point in the future to move to a steel device. Partly because I think there might be less friction between skin and polished steel that between skin and plastic. Partly because I would prefer to not have a padlock jiggling around and knocking against the device. Lastly because a plastic device is really not much more than an honour promise. If I so chose I could either snap the pins, jemmy the padlock off or smash the whole cage. We had an incident a few weeks back on our first trial run with the new kosher A-ring when the cage split along its seam due to a particularly vigorous night time engorgement. Superglue has fixed that, I hope.
I've seen the Latowski, as I'm sure everyone has. I like the front, I'm not so keen on the back, or any "T" style belt. I know what comes out of my behind on occasions and the idea of only being able to go to the loo when I have a shower available in case of any splatter or smearing is not something that appeals.
If we do move to steel, it is more likely to be something like MM, much more affordable and available by post.
Here we go then, post #1 on my journey.