So it's still one of the most generous bonus offerings you'll find anywhere at 12x the deposit plus bonus amount, which really isn't too bad at all! It's the same offer at several other casinos in this group as well and there are matches of up to 300% available, so if your looking for somewhere new to play and don't mind waiting a little longer than usual to get paid these deals might be worth considering.
On the other hand I do read quite a bit of negative press about this casino and I must admit I would be a little weary about depositing a large amount if I was signing up with EuroGrand today - there's even a complaint regarding a player with a £160,000 balance outstanding here at AskGamblers at the moment that hasn't been resolved which surely must be enough to make any player nervous.
All the same I didn't have a problem myself other than the fact withdrawals stay in a reversible pending state for several days after you make your request - the casino states 4 working days, so unless you play on a Monday you are likely to be waiting a whole week to get your money.
There's a "High Roller" bonus of 50% up to £1,000 as well if you are feeling extremely brave, but this seems less attractive to me bearing in mind the deposit + bonus based wagering requirement. This one is probably still worth a try though.