I bought a fleshlight about 4 or 5 years ago. I used it quite a lot at first but I did find it a bit cumbersome; you also need to look after it and clean it properly after use which is a bit of a pain. Also, if you are on the larger side, you may find it a bit tight as I would assume it's made for the average-sized male.
I don't regret buying it, but I rarely use it these days as it's too much of a faff if you just fancy a quick wank. Worth a try if you can afford one though as it's quite a pleasurable sensation. be aware that there are plenty of cheap copes out there which I believe are often a bit crap.