http://groups.msn.com/CATStretchers/frontpage.msnw
That is the MSN group for the CAT devices. I have only used the CAT II Q, so I am a little biased. It really is easy to but on and forget about it all day (until you need to go to the bathroom). I have been much more consistent in wearing this than my previous methods I used.
The problems I've had are:
1.The pusher isn't the most comfortable thing. This has now been updated, but I made my own version and it is working much better. I can't comment on the new design as I haven’t used it.
2. If you have a gf/wife, you will need to wash it a lot. That's because it is really sealed up. If you don't cover the glans at night, it might not be as bad. You will have this problem with any device, but it should decrease some when you have finished stretching.
3.Having to take it off and put it on each time you go to the bathroom gets old fast. I modified mine so I don't have to if I am in a hurry.
4.Need to take off the tension and have enough skin is you get aroused during the day. It is still uncomfortable, but not painful.
Good Things:
1.I have seen more growth & results in the past month than the previous 6. I wouldn't wear my other device in the summer because people might have noticed it, and manual stretching was hard to fit into my schedule each day.
2.Stretches the inner skin very well. And it holds the skin all day without any problem.
3.I am more sensitive down there(rubbing against underwear is VERY uncomfortable). But, I haven't noticed any increase or decrease in [words=http://fleshlight.sjv.io/c/348327/302851/4702]stamina[/words]. The pleasure sensations are stronger than before.
There are many more good things about this device, but it is getting late.
I would still say it is the best device I've seen, and I would buy it again.