Another wonderful and interesting important topic for disscussing by @talanhorne sir...
Actualy I think that is very useful to all steemians...
That is my "Golden Rules" before using bots...
GOLDEN RULES

1. Don't use a bot with Max Suggested Bid of 0 Steem / SBD. That bot has been maxed out on the current voting cycle and you cannot make any ROI.
2. If you are going to spend a LOT then it is often wise to bid early in the voting cycle so that others can see and may not use it. Its also courteous so that you don't suddenly place a huge bid last minute and everyone else in that voting cycle gets much less.
3. Steer clear of bots that have a min / max ROI of none/10%.
4. Using voting bots does increase your reputation, and if you consistently spend a lot of money on up-votes your reputation will rise dramatically! That is worth bearing in mind when you see others with very high reputations who are posting less than great content.. they may not be as wonderful as you think!
   Wel done sir...
   Upvoted and resteemed...