Whilst this is a really attractive casino with loads of great games, you are better off not taking the bonus for the simple reason that you stand to lose more than you deposit with a negative Expected Value. It's a pity because we really like the casino.
The 40 times wagering requirement is right on the border but with the way the bonus structured you have a better chance of clearing the bonus than most. It is to be expected at casino that prides itself on fairness.
A 50 times wagering multiple is starting to get on the expensive side and as long as you play slots with a low house edge you have the best chance of clearing the bonus. The good thing with Betway is that their general bonus rules are fair and transparent.
The bonus terms are fair, even tough the 60x multiple will make it tough to clear the bonus. There is a limit on your withdrawal of 5 times the bonus amount, should you get lucky and clear the bonus. Forget about it. There are many better options.
Decent terms and a lower than average expected loss has always made Casino.com one of the better casinos to play with bonuses which is a complete outlier among Playtech casinos. You get spins on top of the bonus, so even more reason to go for it.