As we approach the second week of @dailyupvotes I have seen that almost everybody who uses the bot is getting very good ROI, this stats can be seen on SteemBotTracker.com:
However, there are very few cases when people are getting slightly negative ROI, what this means is that they are sending more money than what they get back after curation. To counteract this I have started manually voting those posts so that everybody gets ROI.
Enjoy!