Have anyone profited out of dice in the short or long term. I have been trying the best and lost all, I can't leave it. Once after I loss I have gone beyond my ability. Finally as the wallet got emptied, I bought bitcoin particularly for betting and lost even the amount earned from my day job. I used to experience win, but at the end it is a loss. I miss the right time to stop and leave. 
Dice is not as simple as it appears to be. The game is built in a way to give maximum profits to site owner. So if you think you can quickly double your money in three or four bets by investing 0.01-0.05 BTC then you are doing it all together wrong.
The better way to play dice is by following a well-laid strategy. In order to make strategy effective, you have to deposit at least 0.25 BTC (my personal suggestion). Then you can plan your moves. I will give you one example, however strategies can be highly-personalized. So for example, you deposited 0.25 then you can first start with 20% of your funds and try chasing some big odd like 100x (1% probability). You can divide your fund into 50 bets. So your every bet will involve 0.001 BTC and you stand a chance to win 0.1 BTC if you hit right even a single time.
This is how professional crypto gamblers play dice. But as I said, your strategy can be according to your own discretion.