Yes I know several people who have but you can only think longterm with it not short term.
I tried it but gave up as could not justify paying in regularly. It kept doing down and we are in a bull market so started feeling dubious. It is subject to massive fluctuations so you need nerves of steel to cope.
More for the well off which I am not.
If you can keep your money in for 4 years minimum they say you won't lose. I was constantly checking the price and feeling stressed.
Trading is too volatile and most lose but investing may be worthwhile if you have the stomach to hold. Dollar cost average ie invest the same amount monthly or regularly can buffer the storms.
I think it is past the really good days of it when you could make really big gains. In addition Michael Saylor of Microsoft keeps buying up more and more and banks internationally are buying into it way more yet no increases in price during this time. It strikes me it is a better price for the big investors and something fishy is now going on. This all took place in the past few months and despite this the price kept dropping. Very unnerving!
There is a great deal of hype on you tube mainly from those heavily bought into it so they of course have a vested interest in it.
I personally would do stocks and shares isa instead if I was more comfortably off.
If you have the stomach for it give it a whirl. Remember it is a 4 year hold so do not go in and out like a yo yo. Bitcoin was very interesting to learn about but personally I think it seems to cater for the bigger players.
You can study this more on reddit. Have a read on there and research further responses on here and take it from there.