It depends on what you mean by "good profit". You will never buy deeps and sell tops manually, so it would be not wise to expect same from trading bot.
I am working on one for a while, my approach is transparency - you can see all orders and results, they are posted to telegram channel https://t.me/kryakenbot

Currently I added antiflat algorythm and its still being tested, but looks like at current market condition its even more efficient than manual trading, as right now there are no huge swings to ride.