They are a solid investment. I've had them for years and I've always met or beat what I would've got in a savings account. Best savings account now is what 2% so it's worth the gamble.
Nothing better than waking up on draw day with that feeling that this is your month only to check the app and find out you've won fuck all again
They are a poor investment in reality , you’ll get better returns investing in funds wrapped inside an isa.
Admittedly they are safe being backed by the government, and there is the fun element of owning product that might win a large cash prize.
For the record I’ve got some and I’m quite happy accepting the lack of investment income in the hope of winning a few bob.