At the risk of exposing myself to ridicule, I have a Fleshlight. A couple of years ago a girl I was dating bought me one as a gift for my birthday because she was a goddamn nympho and she had always wanted to give one a try. I'm sure no one will believe that, and it is the internet where women are men and swamp donkeys have more power than they should, so I won't waste any more time trying to convince anyone.
They come with various "sleeves" and I have no idea which one mine is, but I'm pretty sure it was the standard one they recommend. It is also modeled after Ariel/Piper Fawn. She surprised me with it so I didn't get to pick, but I probably would have picked her or Eufrat anyway. I believe that costs a little bit extra, but you can get just a generic one, or even a butthole one if you want. Maybe even one that is supposed to simulate a mouth, but I'm not positive on that.
It is pretty much what you would expect, feels great, etc. Cleanup isn't really too bad, and they either include or she bought some "refreshing" stuff that you are supposed to apply to it to keep the material from deteriorating. I have no clue how that works but it isn't very difficult either.
As far as lube, obviously you need to have water-based, not oil-based, as that will eventually ruin the material. They give you a little bottle of it, and she bought a bigger bottle of some stuff called "gun oil lube" I believe. It is supposedly developed by a guy that was really in the military and based it off of gun oil. Again, don't fucking ask me. I'm sure that any water-based lube would be fine, and I'm equally certain that buying it somewhere else would be significantly cheaper. I've honestly never bought lube in my life so I'm no expert, but I can't imagine they sell it cheaper than somewhere else.
So, all that being said...I haven't used the thing in at LEAST six months. When she used it on me (typically during Aunt Flo's visit), it was great. Since parting ways (a good two years or more maybe?), I've used it a few times but it just doesn't really do it for me. Well, to clarify, it does *do* it for me if you know what I mean, but this is going to be the crux of your decision making I believe. This may be a little bit TMI, but we all jerk off, so I'll just explain. I typically jerk off in front of the computer. When I was younger I'd do it wherever, shower, bed, etc. But now with the vast array of internet porn available, the computer is the prime spot. That means I'm sitting in a chair and my hand is doing the work, while my other hand is clicking the mouse as needed. That's all well and good in a normal jerk off session, but when you bring the Fleshlight into it, sitting in a chair relatively motionless just feels wrong. Like, you want to be thrusting and getting into it. Like I said it was all well and good when she was using it and I could move around, thrust, etc. And the fact that she was holding it made a big difference too. I've used it a few times with the TV instead of the computer, laying down, standing up, etc. and that's a lot better. But that's not the way I typically jerk off. I can totally see where people get the urge to wedge it into their mattress or buy some contraption to hold it, because you want to feel like you're fucking right?
So that would be my advice to anyone considering buying one: assess the way you would use it the majority of the time, and then decide how often you'd do that versus normal jerking off. If this one were to disappear, I wouldn't buy another one because I really don't think I'd use it enough to justify the cost. But if you jerk off differently, it might be perfect for you. It isn't too hard to clean or maintain, and it definitely works, so it is just a matter of how much you think you might actually use it. It sounds great at first, but for some like me it isn't really necessary. I mean, I'll still use it from time to time, and if I find another chick to use it on me I'm sure I'll be glad I have it, but you get the point.
Anyway, I hope that helps. Hopefully I don't get too much shit for this, but I'm sure others have them too and maybe they'll post their opinions now that I've started the ball rolling.