The only real issue I've had with OhLife is that frequently I'm out grabbing dinner at 8pm (which I believe is the default), so to keep from forgetting I'll toss in a 1-2 sentence description of what happened and while it's better than nothing, it really isn't writing. Since it's entirely email based, I completely forgot that they have an option to change it - I just switched it to 11pm to see if that gives me better results.
That's was the best I did, every night I write my feelings and forget then. It makes me feel better and less heavy.