I only completed 25 of the 30 tasks.
I don't really care about 5 of them as my honeymoon started from the second day (the game deposit delayed 2 days to enter).
The worse I won a jackpot with a week of GG! (which didn't count for the thirtieth mission of course) =)
About 2 missions were pretty dreadful, but other than that I found it very easy.
To complete them, the link below has a guide to completing the missions:
Complete playthrough guide with videos and strategy tips for all 30 days of the Natural8/GG Poker Network Honeymoon For Newcomers challenge.
honeymoonmissions.com
One or the other may still have a little bit, but most are the same.