I'd give the bot a 3, because I was banned - but it's a risk I'd take. With the influx of bans coming in based on the comments, the only response has been the author pointing to the runescape rules, where you may be banned for using macros.
Yes, we know it's possible, however you should be looking at how to improve the bot and offering information about what you're doing. Most of the bots I've seen from Hexis do not implement enough anti-botting measures that ones such as Cuppa's do.