I tried to use that tool but it didn't work out well for me despite me having quite some decent GPU-s running the program trying to recover my password.I got bored and there was a user here which I believe he still is by the name Dave that has a Wallet Recovery Service somewhere on the forum,just search it here or in google and he cracked a long huge password with his software that he claims to keep 10-20% of the amount of the wallets he recover.Unfortunately I had 0 money there despite me thinking there were some near 4000-5000 dollars but the fact is that he can help anyone and I am sure he can find your password no matter what your password was as long as he has that wallet.dat file.