I've had one for a couple of years. It feels good if you soak it in hot water beforehand. I'd say it's a pretty good product over all, better than most of the toys out there actually. One downside is the cleanup. You can't open it up like the tenga so you have to just let water run through it continuously until it's clean; and then you have to make sure the passage inside stays open while it dries or moisture will collect and it can mold. Most people don't know this but even though the tenga is easier to clean, it's only designed for 20-30 uses, whereas the fleshlight has unlimited use as long as you clean it and store it properly.
One other downside, and this is more of a personal opinion, is that it's not tight enough. You'd think that with this huge casing to support it from being damaged and such a flexible inside, it would have more traction. Oh well, it's still pretty nifty.